HTTP: 7-Zip SquashFS File UidTable Parsing Buffer Overflow

This signature detects attempts to exploit a known vulnerability against 7-zip. A successful attack can lead to a buffer overflow and arbitrary remote code execution within the context of the application.

Extended Description

7-Zip SquashFS File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. 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 parsing of SQFS files. The issue results from the lack of proper validation of user-supplied data, which can result in a write 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-18589.

References

CVE: CVE-2023-40481

Short Name

HTTP:STC:DL:7ZIP-UID-PARSE-BO

Severity

Major

Recommended

False

Recommended Action

Drop

HTTP: 7-Zip SquashFS File UidTable Parsing Buffer Overflow

Extended Description

References

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