Avsnitt
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Python Bot Delivered Through DLL Side-Loading
A "normal", but vulnerable to DLL side-loading PDF reader may be used to launch additional exploit code
https://isc.sans.edu/diary/Python%20Bot%20Delivered%20Through%20DLL%20Side-Loading/31778
Tomcat RCE Correction
To exploit the Tomcat RCE I mentioned yesterday, two non-default configuration options must be selected by the victim.
https://x.com/dkx02668274/status/1901893656316969308
SAML Roulette: The Hacker Always Wins
This Portswigger blog explains in detail how to exploit the ruby-saml vulnerablity against GitLab.
https://portswigger.net/research/saml-roulette-the-hacker-always-wins
Windows Shortcut Zero Day Exploit
Attackers are currently taking advantage of an unpatched vulnerability in how Windows displays Shortcut (.lnk file) details. Trendmicro explains how the attack works and provides PoC code. Microsoft is not planning to fix this issue
https://www.trendmicro.com/en_us/research/25/c/windows-shortcut-zero-day-exploit.html -
Static Analysis of GUID Encoded Shellcode
Didier explains how to decode shell code embeded as GUIDs in malware, and how to feed the result to his tool 1768.py which will extract Cobal Strike configuration information from the code.
https://isc.sans.edu/diary/Static%20Analysis%20of%20GUID%20Encoded%20Shellcode/31774
SAMLStorm: Critical Authentication Bypass in xml-crypto and Node.js libraries
xml-crypto, a library use in Node.js applications to decode XML and support SAML, has found to parse comments incorrectly leading to several SAML vulnerabilities.
https://workos.com/blog/samlstorm
One PUT Request to Own Tomcat: CVE-2025-24813 RCE is in the Wild
A just made public deserialization vulnerablity in Tomcat is already being exploited. Contributing to the rapid exploit release is the similarity of this vulnerability to other Java deserializtion vulnerabilities.
https://lab.wallarm.com/one-put-request-to-own-tomcat-cve-2025-24813-rce-is-in-the-wild/ CVE-2025-24813
CSS Abuse for Evasion and Tracking
Attackers are using cascading stylesheets to evade detection and enable more stealthy tracking of users
https://blog.talosintelligence.com/css-abuse-for-evasion-and-tracking/ -
Saknas det avsnitt?
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Mirai Bot Now Incorporating Malformed DrayTek Vigor Router Exploits
One of the many versions of the Mirai botnet added some new exploit strings attempting to take advantage of an old DrayTek Vigor Router vulnerability, but they got the URL wrong.
https://isc.sans.edu/diary/Mirai%20Bot%20now%20incroporating%20%28malformed%3F%29%20DrayTek%20Vigor%20Router%20Exploits/31770
Compromised GitHub Action
The popular GitHub action tj-actions/changed-files was compromised and leaks credentials via the action logs
https://www.stepsecurity.io/blog/harden-runner-detection-tj-actions-changed-files-action-is-compromised
ruby-saml authentication bypass
A confusion in how to parse SAML messages between two XML parsers used by Ruby leads to an authentication bypass in saml-ruby.
https://github.blog/security/sign-in-as-anyone-bypassing-saml-sso-authentication-with-parser-differentials/
GitHub Fake Security Alerts
Fake GitHub security alerts are used to trick package maintainers into adding OAUTH privileges to malicious apps.
https://www.bleepingcomputer.com/news/security/fake-security-alert-issues-on-github-use-oauth-app-to-hijack-accounts/ -
File Hashes Analysis with Power BI
Guy explains in this diary how to analyze Cowrie honeypot file hashes using Microsoft's BI tool and what you may be able to discover using this tool.
https://isc.sans.edu/diary/File%20Hashes%20Analysis%20with%20Power%20BI%20from%20Data%20Stored%20in%20DShield%20SIEM/31764
Apache Camel Vulnerability
Apache released two patches for Camel in close succession. Initially, the vulnerability was only addressed for headers, but as Akamai discovered, it can also be exploited via query parameters. This vulnerability is trivial to exploit and leads to arbitrary code execution.
https://www.akamai.com/blog/security-research/march-apache-camel-vulnerability-detections-and-mitigations
Juniper Patches Junos Vulnerability
Juniper patches an already exploited vulnerability in JunOS. However, to exploit the vulnerability, and attacker already needs privileged access. By exploiting the vulnerability, an attacker may completely compromised the device.
https://supportportal.juniper.net/s/article/2025-03-Out-of-Cycle-Security-Bulletin-Junos-OS-A-local-attacker-with-shell-access-can-execute-arbitrary-code-CVE-2025-21590?language=en_US
AMI Security Advisory
AMI patched three vulnerabilities. One of the, an authentication bypass in Redfish, allows for a complete system compromise without authentication and is rated with a CVSS score of 10.0.
https://go.ami.com/hubfs/Security%20Advisories/2025/AMI-SA-2025003.pdf -
Log4J Scans for VMWare Hyhbrid Cloud Extensions
An attacker is scanning various login pages, including the authentication feature in the VMWare HCX REST API for Log4j vulnerabilities. The attack submits the exploit string as username, hoping to trigger the vulnerability as Log4j logs the username
https://isc.sans.edu/diary/Scans%20for%20VMWare%20Hybrid%20Cloud%20Extension%20%28HCX%29%20API%20(Log4j%20-%20not%20brute%20forcing)/31762
Patch Tuesday Fallout
Yesterday's Apple patch may re-activate Apple Intelligence for users who earlier disabled it. Microsoft is offering support for users whos USB printers started printing giberish after a January patch was applies.
https://www.macrumors.com/2025/03/11/ios-18-3-2-apple-intelligence-auto-on/
https://learn.microsoft.com/en-us/windows/release-health/status-windows-10-22h2#usb-printers-might-print-random-text-with-the-january-2025-preview-update
Adobe Updates
Adobe updated seven different products, including Adobe Acrobat. The Acrobat vulnerability may lead to remote code execution and Adobe considers the vulnerablities critical.
https://helpx.adobe.com/security/security-bulletin.html
Medusa Ransomware
CISA and partner agencies released details about the Medusa Ransomware. The document includes many details useful to defenders.
https://www.cisa.gov/news-events/cybersecurity-advisories/aa25-071a
Zoom Update
Zoom released a critical update fixing a number of remote code execution vulnerabilities.
https://www.zoom.com/en/trust/security-bulletin/
FreeType Library Vulnerability
https://www.facebook.com/security/advisories/cve-2025-27363 -
Microsoft Patch Tuesday
Microsoft Patched six already exploited vulnerabilities today. In addition, the patches included a critical patch for Microsoft's DNS server and about 50 additional patches.
https://isc.sans.edu/diary/Microsoft%20Patch%20Tuesday%3A%20March%202025/31756
Apple Updates iOS/macOS
Apple released an update to address a single, already exploited, vulnerability in WebKit. This vulnerability affects iOS, macOS and VisionOS.
https://support.apple.com/en-us/100100
Expressif Response to ESP32 Debug Commands
Expressif released a statement commenting on the recent release of a paper alledging "Backdoors" in ESP32 chipsets. According to Expressif, these commands are debug commands and not reachable directly via Bluetooth.
https://www.espressif.com/en/news/Response_ESP32_Bluetooth -
Shellcode Encoded in UUIDs
Attackers are using UUIDs to encode Shellcode. The 128 Bit (or 16 Bytes) encoded in each UUID are converted to shell code to implement a cobalt strike beacon
https://isc.sans.edu/diary/Shellcode%20Encoded%20in%20UUIDs/31752
Moxa CVE-2024-12297 Expanded to PT Switches
Moxa in January first releast an update to address a fronted authorizaation logic disclosure vulnerability. It now updated the advisory and included the PT series switches as vulenrable.
https://www.moxa.com/en/support/product-support/security-advisory/mpsa-241408-cve-2024-12297-frontend-authorization-logic-disclosure-vulnerability-identified-in-pt-switches
Opentext Insufficently Protected Credentials
https://portal.microfocus.com/s/article/KM000037455?language=en_US
Livewire Volt API vulnerability
https://github.com/livewire/volt/security/advisories/GHSA-v69f-5jxm-hwvv -
Commonly Probed Webshell URLs
Many attackers deploy web shells to gain a foothold on vulnerable web servers. These webshells can also be taken over by parasitic exploits.
https://isc.sans.edu/diary/Commonly%20Probed%20Webshell%20URLs/31748
Undocumented ESP32 Commands
A recent conference presentation by Tarlogic revealed several "backdoors" or undocumented features in the commonly used ESP32 Chipsets. Tarlogic also released a toolkit to make it easier to audit chipsets and find these hiddent commands.
https://www.tarlogic.com/news/backdoor-esp32-chip-infect-ot-devices/
Camera Off: Akira deploys ransomware via Webcam
The Akira ransomware group was recently observed infecting a network with Ransomware by taking advantage of a webcam.
https://www.s-rminform.com/latest-thinking/camera-off-akira-deploys-ransomware-via-webcam -
Latest Google Chrome Update Encourages UBlock Origin Removal
The latest update to Google Chrome not only disabled the UBlock Origin ad blocker, but also guides users to uninstall the extension instead of re-enabling it.
https://chromereleases.googleblog.com/2025/03/stable-channel-update-for-desktop.html
https://www.reddit.com/r/youtube/comments/1j2ec76/ublock_origin_is_gone/
Critical Kibana Update
Elastic published a critical Kibana update patching a prototype polution vulnerability that would allow arbitrary code execution for users with the "Viewer" role.
https://discuss.elastic.co/t/kibana-8-17-3-security-update-esa-2025-06/375441
Certified PrePw0n3d Android TV Sticks
Wired is reporting of over a million Android TV sticks that were found to be pre-infected with adware
https://www.wired.com/story/android-tv-streaming-boxes-china-backdoor/
SANS.edu Research Paper
Advanced Persistent Threats (APTs) are among the most challenging to detect in enterprise environments, often mimicking authorized privileged access prior to their actions on objectives.
https://www.sans.edu/cyber-research/identifying-advanced-persistent-threat-activity-through-threat-informed-detection-engineering-enhancing-alert-visibility-enterprises/ -
DShield Traffic Analysis using ELK
The "DShield SIEM" includes an ELK dashboard as part of the Honeypot. Learn how to find traffic of interest with this tool.
https://isc.sans.edu/diary/DShield%20Traffic%20Analysis%20using%20ELK/31742
Zen and the Art of Microcode Hacking
Google released details, including a proof of concept exploit, showing how to take advantage of the recently patched AMD microcode vulnerability
https://bughunters.google.com/blog/5424842357473280/zen-and-the-art-of-microcode-hacking CVE-2024-56161
VIM Vulnerability
An attacker may execute arbitrary code by tricking a user to open a crafted tar file in VIM
https://github.com/vim/vim/security/advisories/GHSA-wfmf-8626-q3r3
Snil Mail Fake Ransom Note
A copy cat group is impersonating ransomware actors. The group sends snail mail to company executives claiming to have stolen company data and threatening to leak it unless a payment is made.
https://www.guidepointsecurity.com/blog/snail-mail-fail-fake-ransom-note-campaign-preys-on-fear/ -
Romanian Distillery Scanning for SMTP Credentials
A particular attacker expanded the scope of their leaked credential file scans. In addition to the usual ".env" style files, it is not looking for specific SMTP related credential files.
https://isc.sans.edu/diary/Romanian%20Distillery%20Scanning%20for%20SMTP%20Credentials/31736
Tool Updates: mac-robber.py
This update of mac-robber.py fixes issues with symlinks.
https://isc.sans.edu/diary/Tool%20update%3A%20mac-robber.py/31738
CVE-2025-1723 Account takeover vulnerability in ADSelfService Plus
CVE-2025-1723 describes a vulnerability caused by session mishandling in ADSelfService Plus that could allow unauthorized access to user enrollment data when MFA was not enabled for ADSelfService Plus login.
https://www.manageengine.com/products/self-service-password/advisory/CVE-2025-1723.html
Android March Update
Google released an update for Android addressing two already exploited vulnerabilities and several critical issues.
https://source.android.com/docs/security/bulletin/2025-03-01
PayPal's no-code-checkout Abuse
Attackers are using PayPal's no-code-checkout feature is being abused by scammers to host PayPal tech support scam pages right within the PayPal.com domain.
https://www.malwarebytes.com/blog/scams/2025/02/paypals-no-code-checkout-abused-by-scammers
Broadcom Fixes three VMWare VCenter Vulnerabilities
https://github.com/vmware/vcf-security-and-compliance-guidelines/tree/main/security-advisories/vmsa-2025-0004 -
Mark of the Web: Some Technical Details
Windows implements the "Mark of the Web" (MotW) as an alternate data stream that contains not just the "zoneid" of where the file came from, but may include other data like the exact URL and referrer.
https://isc.sans.edu/diary/Mark%20of%20the%20Web%3A%20Some%20Technical%20Details/31732
Havoc Sharepoint with Microsoft Graph API
A recent phishing attack observed by Fortinet uses a simple HTML email to trick a user into copy pasting powershell into their system to execute additional code. Most of the malware interaction uses a Sharepoint site via Microsoft's Graph API futher hiding the malicious traffic
https://www.fortinet.com/blog/threat-research/havoc-sharepoint-with-microsoft-graph-api-turns-into-fud-c2
Paragon Partition Manager Exploit
A vulnerable Paragon Partition Manager has been user recently to escalate privileges for ransomware deployment. Even if you to not have PAragon installed: An attacker may just "bring the vulnerable driver" to your system.
https://kb.cert.org/vuls/id/726882 -
Common Crawl includes Common Leaks
The "Common Crawl" dataset, a large dataset created by spidering website, contains as expected many API keys and other secrets. This data is often used to train large language models
https://trufflesecurity.com/blog/research-finds-12-000-live-api-keys-and-passwords-in-deepseek-s-training-data
Github Repositories Exposed by Copilot
As it is well known, Github's Copilot is using data from public GitHub repositories to train it's model. However, it appears that repositories who were briefly left open and later made private have been included as well, allowing Copilot users to retrieve files from these repositories.
https://www.lasso.security/blog/lasso-major-vulnerability-in-microsoft-copilot
MITRE Caldera Framework Allows Unauthenticated Code Execution
The MITRE Caldera adversary emulation framework allows for unauthenticted code execution by allowing attackers to specify compiler options
https://medium.com/@mitrecaldera/mitre-caldera-security-advisory-remote-code-execution-cve-2025-27364-5f679e2e2a0e
modsecurity Rule Bypass
Attackers may bypass the modsecurity web application firewall by prepending encoded characters with 0.
https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-42w7-rmv5-4x2j -
Njrat Compaign Using Microsoft dev Tunnels:
A recent version of the Njrat remote admin tool is taking advantage of Microsoft's developer tunnels (devtunnels.ms) as a command and control channel.
https://isc.sans.edu/diary/Njrat%20Campaign%20Using%20Microsoft%20Dev%20Tunnels/31724
NrootTag Apple FindMy Abuse
Malware could use a weakness in the keys used for Apple FindMy to abuse it to track victims. Updates were released with iOS 18.2, but to solve the issue the vast majority of Apple users must update.
https://nroottag.github.io/
360XSS: Mass Website Exploitation via Virtual Tour Framework
The Krpano VR library which is often used to implement 3D virtual tours on real estate websites, is currently being abused to inject spam messages. The XSS vulnerabilty could allow attackers to inject even more malicious JavaScript.
https://olegzay.com/360xss/
SANS.edu Research: Proof is in the Pudding: EDR Configuration Versus Ransomware. Benjamin Powell
https://www.sans.edu/cyber-research/proof-pudding-edr-configuration-versus-ransomware/ -
Attacker of of Ephemeral Ports
Attackers often use ephermeral ports to reach out to download additional resources or exfiltrate data. This can be used, with care, to detect possible compromises.
https://isc.sans.edu/diary/%5BGuest%20Diary%5D%20Malware%20Source%20Servers%3A%20The%20Threat%20of%20Attackers%20Using%20Ephemeral%20Ports%20as%20Service%20Ports%20to%20Upload%20Data/31710
Compromised Visal Studio Code Extension downloaded by Millions
Amit Assaraf identified a likely compromised Visual Studio Code theme that was installed by millions of potential victims. Amit did not disclose the exact malicious behaviour, but is asking for victims to contact them for details.
https://medium.com/@amitassaraf/a-wolf-in-dark-mode-the-malicious-vs-code-theme-that-fooled-millions-85ed92b4bd26
ByBit Theft Due to Compromised Developer Workstation
ByBit and Safe{Wallet} disclosed that the record breaking ethereum theft was due to a compromised Safe{Wallet} developer workstation. A replaced JavaScript file targeted ByBit and altered a transaction signed by ByBit.
https://x.com/benbybit/status/1894768736084885929
https://x.com/safe/status/1894768522720350673
PoC for NAKIVO Backup Replication Vulnerability
This vulnerability allows the compromise of NAKIVO backup systems. The vulnerability was patched silently in November, and never disclosed by NAKIVO. Instead, WatchTowr now disloses details including a proof of concept exploit.
https://labs.watchtowr.com/the-best-security-is-when-we-all-agree-to-keep-everything-secret-except-the-secrets-nakivo-backup-replication-cve-2024-48248/
OpenH264 Vulnerability
https://github.com/cisco/openh264/security/advisories/GHSA-m99q-5j7x-7m9x
rsync vulnerability exploited
https://www.cisa.gov/known-exploited-vulnerabilities-catalog -
Massive Botnet Targets M365 with Password Spraying
A large botnet is targeting service accounts in M365 with credentials stolen by infostealer malware.
https://securityscorecard.com/wp-content/uploads/2025/02/MassiveBotnet-Report_022125_03.pdf
Mixing up Public and Private Keys in OpenID
The complex OpenID specificiation and the flexibility it supports enables careless administrators to publich private keys instead or in addition to public keys
https://blog.hboeck.de/archives/909-Mixing-up-Public-and-Private-Keys-in-OpenID-Connect-deployments.html
Healthcare Malware Hunt Part 1:
Medial images are often encoded in the DICOM format, an image format unique to medical imaging. Patients looking for viewers for DICOM images are tricked into downloading malware.
https://www.forescout.com/blog/healthcare-malware-hunt-part-1-silver-fox-apt-targets-philips-dicom-viewers/ -
Unfurl Update Released
Unfurl released an Update fixing a few bugs and adding support to decode BlueSky URLs.
https://isc.sans.edu/diary/Unfurl%20v2025.02%20released/31716
Google Confirms GMail To Ditch SMS Code Authentication
Google no longer considers SMS authentication save enough for GMail. Instead, it pushes users to use Passkeys, or QR code based app authentication
https://www.forbes.com/sites/daveywinder/2025/02/23/google-confirms-gmail-to-ditch-sms-code-authentication/
Beware of Paypal New Address Feature Abuse
Attackers are using "address change" e-mails to send links to phishing sites or trick users into calling fake tech support phone numbers. Attackers are just adding the malicious content as part of the address. The e-mail themselves are legitimate PayPal emails and will pass various spam and phishing filters.
https://www.bleepingcomputer.com/news/security/beware-paypal-new-address-feature-abused-to-send-phishing-emails/
Exim SQL Injection Vulnerability
Exim, with sqlite support and ETRN enabled, is vulnerable to a simple SQL injection exploit. A PoC has been released
https://www.exim.org/static/doc/security/CVE-2025-26794.txt
https://github.com/OscarBataille/CVE-2025-26794?
XMLlib patches
https://gitlab.gnome.org/GNOME/libxml2/-/issues/847
https://gitlab.gnome.org/GNOME/libxml2/-/issues/828
0-Day in Parallels
https://jhftss.github.io/Parallels-0-day/ -
Tool Update: Sigs.py
Jim updates sigs.py. The tool verifies hashes for files and automatically recognizes what hash is used.
https://isc.sans.edu/diary/Tool%20update%3A%20sigs.py%20-%20added%20check%20mode/31706
Google Announcing Quantum Safe Digital Signatures in Cloud KMS
Google announced the option to use quantum safe digital signatures for its
cloud key management system.
https://cloud.google.com/blog/products/identity-security/announcing-quantum-safe-digital-signatures-in-cloud-kms
Windows 11 Patch issues
The February Patch Tuesday appears to have caused issues with a number of Windows 11 systems. In particular the usability of the file manager appears to be affected.
https://www.windowslatest.com/2025/02/16/windows-11-kb5051987-breaks-file-explorer-install-fails-on-windows-11-24h2/
LTE/5G Vulnerabilities
Researchers at the university of Florida have identified a large number of vulnerabilities in 5G and LTE networks.
https://nathanielbennett.com/publications/ransacked.pdf -
Using ES|QL In Kibana to Query DShield Honeypot Logs
Using the "Elastic Search Piped Query Language" to query DShield honeypot logs
https://isc.sans.edu/diary/Using%20ES%7CQL%20in%20Kibana%20to%20Queries%20DShield%20Honeypot%20Logs/31704
Mongoose Flaws Put MongoDB at risk
The Object Direct Mapping library Mongoose suffers from an injection vulnerability leading to the potenitial of remote code exeuction in MongoDB
https://www.theregister.com/2025/02/20/mongoose_flaws_mongodb/
U-Boot Vulnerabilities
The open source boot loader U-Boot does suffer from a number of issues allowing the bypass of its integrity checks. This may lead to the execution of malicious code on boot.
https://www.openwall.com/lists/oss-security/2025/02/17/2
Unifi Protect Camera Update
https://community.ui.com/releases/Security-Advisory-Bulletin-046-046/9649ea8f-93db-4713-a875-c3fd7614943f -
XWorm Cocktail: A Mix of PE data with PowerShell Code
Quick analysis of an interesting XWrom sample with powershell code embedded inside an executable
https://isc.sans.edu/diary/XWorm+Cocktail+A+Mix+of+PE+data+with+PowerShell+Code/31700
Microsoft's Majorana 1 Chip Carves New Path for Quantum Computing
Microsoft announced a breack through in Quantum computing. Its new prototype Majorana 1 chip takes advantage of exotic majorana particles to implement a scalable low error rate solution to building quantum computers
https://news.microsoft.com/source/features/ai/microsofts-majorana-1-chip-carves-new-path-for-quantum-computing/
Russia Targeting Signal Messenger
Signal is well regarded as a secure end to end encrypted messaging platform. However, a user may be tricked into providing access to their account by scanning a QR code masquerading as a group channel invitation.
https://cloud.google.com/blog/topics/threat-intelligence/russia-targeting-signal-messenger/ - Visa fler
