Description
NSA Ghidra through 9.0.4, when experimental mode is enabled, allows arbitrary code execution if the Read XML Files feature of Bit Patterns Explorer is used with a modified XML document. This occurs in Features/BytePatterns/src/main/java/ghidra/bitpatterns/info/FileBitPatternInfoReader.java. An attack could start with an XML document that was originally created by DumpFunctionPatternInfoScript but then directly modified by an attacker (for example, to make a java.lang.Runtime.exec call).
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 1 repository
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purpleracc00n/CVE-2019-16941 ★ 4 · Oct 1, 2019
PoC for CVE-2019-16941
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- https://github.com/NationalSecurityAgency/ghidra/issues/1090
- https://github.com/NationalSecurityAgency/ghidra/blob/79d8f164f8bb8b15cfb60c5d4faeb8e1c25d15ca/Ghidra/Features/BytePatterns/src/main/java/ghidra/bitpatterns/info/FileBitPatternInfoReader.java#L187-L188
- https://github.com/purpleracc00n/CVE-2019-16941
- https://github.com/NationalSecurityAgency/ghidra/commit/a17728f8c12effa171b17a25ccfb7e7d9528c5d0
- https://www.symantec.com/security-center/vulnerabilities/writeup/110223?om_rssid=sr-advisories
- https://twitter.com/NSAGov/status/1178812792159248385