CVE-2023-38831

Description

RARLAB WinRAR before 6.23 allows attackers to execute arbitrary code when a user attempts to view a benign file within a ZIP archive. The issue occurs because a ZIP archive may include a benign file (such as an ordinary .JPG file) and also a folder that has the same name as the benign file, and the contents of the folder (which may include executable content) are processed during an attempt to access only the benign file. This was exploited in the wild in April through October 2023.

References

https://www.cisa.gov/news-events/cybersecurity-advisories/aa24-317a

https://www.ic3.gov/CSA/2024/241030.pdf

https://www.cloudflare.com/threat-intelligence/research/report/unraveling-sloppylemmings-operations-across-south-asia/

https://securityaffairs.com/168030/hacktivism/head-mare-hacktivist-group-winrar.html

https://thehackernews.com/2024/09/hacktivists-exploits-winrar.html

https://securelist.com/vulnerability-exploit-report-q2-2024/113455/

https://blog.cloudflare.com/disrupting-flyingyeti-campaign-targeting-ukraine

https://securelist.com/vulnerability-report-q1-2024/112554/

https://www.infosecurity-magazine.com/news/water-hydras-zero-day-financial/?&web_view=true

https://www.bleepingcomputer.com/news/security/bumblebee-malware-attacks-are-back-after-4-month-break/

https://www.trendmicro.com/en_us/research/24/a/pawn-storm-uses-brute-force-and-stealth.html?&web_view=true

https://thehackernews.com/2023/12/uac-0099-using-winrar-exploit-to-target.html?&web_view=true

https://thehackernews.com/2023/12/uac-0099-using-winrar-exploit-to-target.html

https://thehackernews.com/2023/12/russian-apt28-hackers-targeting-13.html?&web_view=true

https://securityintelligence.com/x-force/itg05-ops-leverage-israel-hamas-conflict-lures-to-deliver-headlace-malware/

https://meterpreter.org/proofpoint-uncovers-ta422-apt28s-dedicated-phishing-exploitation-loop/

https://www.microsoft.com/en-us/security/blog/2023/03/24/guidance-for-investigating-attacks-using-cve-2023-23397/

https://www.infosecurity-magazine.com/news/russias-apt29-embassies-ngrok/

https://therecord.media/cyber-espionage-campaign-embassies-apt29-cozy-bear?&web_view=true

https://securityboulevard.com/2023/11/the-new-apt-group-darkcasino-and-the-global-surge-in-winrar-0-day-exploits/?web_view=true

https://thehackernews.com/2023/11/sidecopy-exploiting-winrar-flaw-in.html

https://web-assets.esetstatic.com/wls/en/papers/threat-reports/eset-apt-activity-report-q2-2023-q3-2023.pdf

https://www.bleepingcomputer.com/news/security/france-says-russian-state-hackers-breached-numerous-critical-networks/

https://blog.google/threat-analysis-group/government-backed-actors-exploiting-winrar-vulnerability/

https://thehackernews.com/2023/10/pro-russian-hackers-exploiting-recent.html

https://www.mcafee.com/blogs/other-blogs/mcafee-labs/exploring-winrar-vulnerability-cve-2023-38831/

https://www.group-ib.com/blog/cve-2023-38831-winrar-zero-day/

https://www.bleepingcomputer.com/news/security/winrar-zero-day-exploited-since-april-to-hack-trading-accounts/

https://news.ycombinator.com/item?id=37236100

http://packetstormsecurity.com/files/174573/WinRAR-Remote-Code-Execution.html

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3