CVE-2017-16921
Summary
| CVE | CVE-2017-16921 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2017-12-08 15:29:00 UTC |
| Updated | 2025-04-20 01:37:25 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.0 8.8 HIGH from [email protected]
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.338690000 probability, percentile 0.970140000 (date 2026-05-17)
Problem Types: CWE-78 | n/a
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.0 | [email protected] | Primary | 8.8 | HIGH | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 2.0 | [email protected] | Primary | 9 | AV:N/AC:L/Au:S/C:C/I:C/A:C |
CVSS v3.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
LowAuthentication
SingleConfidentiality
CompleteIntegrity
CompleteAvailability
CompleteAV:N/AC:L/Au:S/C:C/I:C/A:C
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Debian | Debian Linux | 7.0 | All | All | All |
| Operating System | Debian | Debian Linux | 8.0 | All | All | All |
| Operating System | Debian | Debian Linux | 9.0 | All | All | All |
| Application | Otrs | Otrs | 4.0.1 | All | All | All |
| Application | Otrs | Otrs | 4.0.10 | All | All | All |
| Application | Otrs | Otrs | 4.0.11 | All | All | All |
| Application | Otrs | Otrs | 4.0.12 | All | All | All |
| Application | Otrs | Otrs | 4.0.13 | All | All | All |
| Application | Otrs | Otrs | 4.0.14 | All | All | All |
| Application | Otrs | Otrs | 4.0.15 | All | All | All |
| Application | Otrs | Otrs | 4.0.16 | All | All | All |
| Application | Otrs | Otrs | 4.0.17 | All | All | All |
| Application | Otrs | Otrs | 4.0.18 | All | All | All |
| Application | Otrs | Otrs | 4.0.19 | All | All | All |
| Application | Otrs | Otrs | 4.0.2 | All | All | All |
| Application | Otrs | Otrs | 4.0.20 | All | All | All |
| Application | Otrs | Otrs | 4.0.21 | All | All | All |
| Application | Otrs | Otrs | 4.0.22 | All | All | All |
| Application | Otrs | Otrs | 4.0.23 | All | All | All |
| Application | Otrs | Otrs | 4.0.24 | All | All | All |
| Application | Otrs | Otrs | 4.0.25 | All | All | All |
| Application | Otrs | Otrs | 4.0.26 | All | All | All |
| Application | Otrs | Otrs | 4.0.3 | All | All | All |
| Application | Otrs | Otrs | 4.0.4 | All | All | All |
| Application | Otrs | Otrs | 4.0.5 | All | All | All |
| Application | Otrs | Otrs | 4.0.6 | All | All | All |
| Application | Otrs | Otrs | 4.0.7 | All | All | All |
| Application | Otrs | Otrs | 4.0.8 | All | All | All |
| Application | Otrs | Otrs | 4.0.9 | All | All | All |
| Application | Otrs | Otrs | 5.0.0 | All | All | All |
| Application | Otrs | Otrs | 5.0.0 | alpha1 | All | All |
| Application | Otrs | Otrs | 5.0.0 | beta1 | All | All |
| Application | Otrs | Otrs | 5.0.0 | beta2 | All | All |
| Application | Otrs | Otrs | 5.0.0 | beta3 | All | All |
| Application | Otrs | Otrs | 5.0.0 | beta4 | All | All |
| Application | Otrs | Otrs | 5.0.0 | beta5 | All | All |
| Application | Otrs | Otrs | 5.0.0 | rc1 | All | All |
| Application | Otrs | Otrs | 5.0.1 | All | All | All |
| Application | Otrs | Otrs | 5.0.10 | All | All | All |
| Application | Otrs | Otrs | 5.0.11 | All | All | All |
| Application | Otrs | Otrs | 5.0.12 | All | All | All |
| Application | Otrs | Otrs | 5.0.13 | All | All | All |
| Application | Otrs | Otrs | 5.0.14 | All | All | All |
| Application | Otrs | Otrs | 5.0.15 | All | All | All |
| Application | Otrs | Otrs | 5.0.16 | All | All | All |
| Application | Otrs | Otrs | 5.0.17 | All | All | All |
| Application | Otrs | Otrs | 5.0.18 | All | All | All |
| Application | Otrs | Otrs | 5.0.19 | All | All | All |
| Application | Otrs | Otrs | 5.0.2 | All | All | All |
| Application | Otrs | Otrs | 5.0.20 | All | All | All |
| Application | Otrs | Otrs | 5.0.21 | All | All | All |
| Application | Otrs | Otrs | 5.0.22 | All | All | All |
| Application | Otrs | Otrs | 5.0.23 | All | All | All |
| Application | Otrs | Otrs | 5.0.24 | All | All | All |
| Application | Otrs | Otrs | 5.0.3 | All | All | All |
| Application | Otrs | Otrs | 5.0.4 | All | All | All |
| Application | Otrs | Otrs | 5.0.5 | All | All | All |
| Application | Otrs | Otrs | 5.0.6 | All | All | All |
| Application | Otrs | Otrs | 5.0.7 | All | All | All |
| Application | Otrs | Otrs | 5.0.8 | All | All | All |
| Application | Otrs | Otrs | 5.0.9 | All | All | All |
| Application | Otrs | Otrs | 6.0.0 | All | All | All |
| Application | Otrs | Otrs | 6.0.0 | alpha1 | All | All |
| Application | Otrs | Otrs | 6.0.0 | beta1 | All | All |
| Application | Otrs | Otrs | 6.0.0 | beta2 | All | All |
| Application | Otrs | Otrs | 6.0.0 | beta3 | All | All |
| Application | Otrs | Otrs | 6.0.0 | beta4 | All | All |
| Application | Otrs | Otrs | 6.0.0 | beta5 | All | All |
| Application | Otrs | Otrs | 6.0.0 | rc1 | All | All |
| Application | Otrs | Otrs | 6.0.1 | All | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| [SECURITY] [DLA 1212-1] otrs2 security update | af854a3a-2127-422b-91ae-364da2661108 | lists.debian.org | Mailing List, Third Party Advisory |
| OTRS 6.0.1 Remote Command Execution ≈ Packet Storm | af854a3a-2127-422b-91ae-364da2661108 | packetstormsecurity.com | |
| OTRS 5.0.x/6.0.x - Remote Command Execution | af854a3a-2127-422b-91ae-364da2661108 | www.exploit-db.com | Exploit, Third Party Advisory, VDB Entry |
| Security Advisory 2017-09: Security Update for OTRS Framework - otrs.com| OTRS Simple Service Management | af854a3a-2127-422b-91ae-364da2661108 | www.otrs.com | Issue Tracking, Patch, Vendor Advisory |
| Debian -- Security Information -- DSA-4066-1 otrs2 | af854a3a-2127-422b-91ae-364da2661108 | www.debian.org | Mailing List, Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.