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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.
[ XRAY-714109 ] picklescan 0.0.24 (frogbot)
Violation Details
Policies:
high-cve
Watch Name:
frogbot
Contextual Analysis:
Undetermined
Direct Dependencies:
picklescan:0.0.24
Impacted Dependency:
picklescan:0.0.24
Fixed Versions:
[0.0.27]
CVSS V3:
-
Picklescan has pickle parsing logic flaw that leads to malicious pickle file bypass
An Improper Input Validation vulnerability in the scanning logic of mmaitre314 picklescan versions up to and including 0.0.30 allows a remote attacker to bypass pickle files security checks by supplying a standard pickle file with a PyTorch-related file extension. When the pickle file incorrectly considered safe is loaded, it can lead to the execution of malicious code.
A Protection Mechanism Failure vulnerability in mmaitre314 picklescan versions up to and including 0.0.30 allows a remote attacker to bypass the unsafe globals check. This is possible because the scanner performs an exact match for module names, allowing malicious payloads to be loaded via submodules of dangerous packages (e.g., 'asyncio.unix_events' instead of 'asyncio').
When the incorrectly considered safe file is loaded after scan, it can lead to the execution of malicious code.
The unsafe globals in Picklescan before 0.0.25 do not include ssl. Consequently, ssl.get_server_certificate can exfiltrate data via DNS after deserialization.
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