CVE-2023-40477
RARLAB WinRAR Recovery Volume Improper Validation of Array Index Remote Code Execution Vulnerability.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 11.4%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
Description
RARLAB WinRAR Recovery Volume Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the processing of recovery volumes. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-21233.
- CVSS 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 11.38% probability · 96th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-129
- Affected
- rarlab/winrar
- Source
- zdi-disclosures@trendmicro.com
References
- https://www.win-rar.com/singlenewsview.html?&L=0&tx_ttnews%5Btt_news%5D=232&cHash=c5bf79590657e32554c6683296a8e8aaRelease Notes
- https://www.zerodayinitiative.com/advisories/ZDI-23-1152/Third Party Advisory, VDB Entry
- https://lists.debian.org/debian-lts-announce/2023/11/msg00009.html
- https://www.win-rar.com/singlenewsview.html?&L=0&tx_ttnews%5Btt_news%5D=232&cHash=c5bf79590657e32554c6683296a8e8aaRelease Notes
- https://www.zerodayinitiative.com/advisories/ZDI-23-1152/Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.