CVE-2023-39362

NameCVE-2023-39362
DescriptionCacti is an open source operational monitoring and fault management framework. In Cacti 1.2.24, under certain conditions, an authenticated privileged user, can use a malicious string in the SNMP options of a Device, performing command injection and obtaining remote code execution on the underlying server. The `lib/snmp.php` file has a set of functions, with similar behavior, that accept in input some variables and place them into an `exec` call without a proper escape or validation. This issue has been addressed in version 1.2.25. Users are advised to upgrade. There are no known workarounds for this vulnerability.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3765-1, DSA-5550-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
cacti (PTS)jessie, jessie (lts)0.8.8b+dfsg-8+deb8u10vulnerable
stretch (security), stretch (lts), stretch0.8.8h+ds1-10+deb9u2vulnerable
buster (security), buster, buster (lts)1.2.2+ds1-2+deb10u6fixed
bullseye1.2.16+ds1-2+deb11u3fixed
bullseye (security)1.2.16+ds1-2+deb11u4fixed
bookworm1.2.24+ds1-1+deb12u4fixed
bookworm (security)1.2.24+ds1-1+deb12u2fixed
sid, trixie1.2.28+ds1-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
cactisourcejessie(unfixed)end-of-life
cactisourcestretch(unfixed)end-of-life
cactisourcebuster1.2.2+ds1-2+deb10u6DLA-3765-1
cactisourcebullseye1.2.16+ds1-2+deb11u2DSA-5550-1
cactisourcebookworm1.2.24+ds1-1+deb12u1DSA-5550-1
cactisource(unstable)1.2.25+ds1-1

Notes

https://github.com/Cacti/cacti/security/advisories/GHSA-g6ff-58cj-x3cp
https://github.com/cacti/cacti/commit/cb9ab92f2580fc6cb9b64ce129655fb15e35d056 (release/1.2.25)
https://github.com/Cacti/cacti/commit/4c26f39fa3567553192823a5e8096b187bbaddde (release/1.2.25)
snmp_escape_string broken and non-exploitable until https://github.com/Cacti/cacti/commit/c66d5815b8381eaa7ef679abc8d041f23105ef34 (release/1.2.23)
Requires php-snmp be disabled.

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