VIR Vulnerability Intelligence Relay

CVE-2017-16921

high
Published 2017-12-08 · Modified 2026-05-13
CVSS v3
8.8
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v2
9.0
VIR risk
8.8

Description

In OTRS 6.0.x up to and including 6.0.1, OTRS 5.0.x up to and including 5.0.24, and OTRS 4.0.x up to and including 4.0.26, an attacker who is logged into OTRS as an agent can manipulate form parameters (related to PGP) and execute arbitrary shell commands with the permissions of the OTRS or web server user.

Predictions

Exploit likelihood
92%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2017-16921

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://www.otrs.com/security-advisory-2017-09-security-update-otrs-framework/

OS impact
OSVersionStatusFixed in
debian debian7.0affected
debian debian8.0affected
debian debian9.0affected
debian debianbullseyefixed6.0.2-1

Application impact
VendorProductVersionsFixed
otrsotrs4.0.1
otrsotrs4.0.2
otrsotrs4.0.3
otrsotrs4.0.4
otrsotrs4.0.5
otrsotrs4.0.6
otrsotrs4.0.7
otrsotrs4.0.8
otrsotrs4.0.9
otrsotrs4.0.10
otrsotrs4.0.11
otrsotrs4.0.12
otrsotrs4.0.13
otrsotrs4.0.14
otrsotrs4.0.15
otrsotrs4.0.16
otrsotrs4.0.17
otrsotrs4.0.18
otrsotrs4.0.19
otrsotrs4.0.20
otrsotrs4.0.21
otrsotrs4.0.22
otrsotrs4.0.23
otrsotrs4.0.24
otrsotrs4.0.25
otrsotrs4.0.26
otrsotrs5.0.0
otrsotrs5.0.1
otrsotrs5.0.2
otrsotrs5.0.3
otrsotrs5.0.4
otrsotrs5.0.5
otrsotrs5.0.6
otrsotrs5.0.7
otrsotrs5.0.8
otrsotrs5.0.9
otrsotrs5.0.10
otrsotrs5.0.11
otrsotrs5.0.12
otrsotrs5.0.13
otrsotrs5.0.14
otrsotrs5.0.15
otrsotrs5.0.16
otrsotrs5.0.17
otrsotrs5.0.18
otrsotrs5.0.19
otrsotrs5.0.20
otrsotrs5.0.21
otrsotrs5.0.22
otrsotrs5.0.23
otrsotrs5.0.24
otrsotrs6.0.0
otrsotrs6.0.1

References

CWEs

CWE-78

Verify integrity in audit chain (admin only). AS-IS.