CVE-2020-3315

NameCVE-2020-3315
DescriptionMultiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass the configured file policies on an affected system. The vulnerability is due to errors in how the Snort detection engine handles specific HTTP responses. An attacker could exploit this vulnerability by sending crafted HTTP packets that would flow through an affected system. A successful exploit could allow the attacker to bypass the configured file policies and deliver a malicious payload to the protected network.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3317-1, DSA-5354-1
Debian Bugs1021276

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
snort (PTS)buster2.9.7.0-5vulnerable
buster (security)2.9.20-0+deb10u1fixed
bullseye2.9.15.1-5vulnerable
bullseye (security)2.9.20-0+deb11u1fixed
sid2.9.15.1-6vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
snortsourcebuster2.9.20-0+deb10u1DLA-3317-1
snortsourcebullseye2.9.20-0+deb11u1DSA-5354-1
snortsource(unstable)(unfixed)1021276

Notes

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort_filepolbypass-m4X5DgOP

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