PickleScan Security Bypass via Bad CRC in ZIP Archive
48Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 9.3epss 1.4%
exploitation probability
1.4%top 30% of all CVEs
observed exploitation
nono source reports it
2 public exploit(s)
An Improper Handling of Exceptional Conditions vulnerability in the ZIP archive scanning component of mmaitre314 picklescan allows a remote attacker to bypass security scans. This is achieved by crafting a ZIP archive containing a file with a bad Cyclic Redundancy Check (CRC), which causes the scanner to halt and fail to analyze the contents for malicious pickle files. When the file incorrectly considered safe is loaded, it can lead to the execution of malicious code.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
mmaitre314 · picklescanpublic PoCs found — 2
cve_referencehuggingface.co/jinaai/jina-embeddings-v2-base-en/resolve/main/pytorch_model.bin?download=trueunverifiedcve_referencehuggingface.co/jinaai/jina-embeddings-v2-base-en/tree/mainunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://github.com/mmaitre314/picklescan/blob/v0.0.29/src/picklescan/relaxed_zipfile.py#L35https://github.com/mmaitre314/picklescan/security/advisories/GHSA-mjqp-26hc-grxghttps://huggingface.co/jinaai/jina-embeddings-v2-base-en/resolve/main/pytorch_model.bin?download=truehttps://huggingface.co/jinaai/jina-embeddings-v2-base-en/tree/main