Vulnerability CVE-2017-16921 - CERT Civis.Net

Vulnerability Name:

CVE-2017-16921 (CCN-136172)

Assigned:

2017-12-05

Published:

2017-12-05

Updated:

2021-04-22

Summary:

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.

CVSS v3 Severity:

8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
7.9 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

8.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
7.9 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

9.0 High (CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Authentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

9.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Type:

Vulnerability Consequences:

Gain Access

References:

Source: MITRE
Type: CNA
CVE-2017-16921

Source: MISC
Type: UNKNOWN
http://packetstormsecurity.com/files/162295/OTRS-6.0.1-Remote-Command-Execution.html

Source: XF
Type: UNKNOWN
otrs-cve201716921-cmd-exec(136172)

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20171219 [SECURITY] [DLA 1212-1] otrs2 security update

Source: CCN
Type: Packet Storm Security [01-24-2018]
OTRS 5.0.x / 6.0.x Remote Command Execution

Source: CCN
Type: Packet Storm Security [04-22-2021]
OTRS 6.0.1 Remote Command Execution

Source: DEBIAN
Type: Mailing List, Third Party Advisory
DSA-4066

Source: EXPLOIT-DB
Type: EXPLOIT
Offensive Security Exploit Database [01-21-2018]

Source: EXPLOIT-DB
Type: Exploit, Third Party Advisory, VDB Entry
43853

Source: EXPLOIT-DB
Type: EXPLOIT
Offensive Security Exploit Database [04-22-2021]

Source: CCN
Type: OTRS Security Advisory 2017-09
Security Update for OTRS Framework

Source: CONFIRM
Type: Issue Tracking, Patch, Vendor Advisory
https://www.otrs.com/security-advisory-2017-09-security-update-otrs-framework/

Vulnerable Configuration:

Configuration 1:

cpe:/a:otrs:otrs:4.0.24:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.22:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.15:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.13:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.6:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.4:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.23:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.21:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.14:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.12:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.5:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.3:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.0:beta5:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.0:beta3:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.0:beta1:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:6.0.0:beta3:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:6.0.0:beta1:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.20:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.19:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.18:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.17:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.16:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.3:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.2:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.1:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.24:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.10:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.9:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.8:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.7:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.0:alpha1:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:6.0.0:rc1:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:6.0.0:beta5:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:6.0.0:beta4:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.26:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.25:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.11:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.10:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.9:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.8:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.19:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.18:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.17:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.16:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.15:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.2:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.1:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.0:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.0:rc1:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:6.0.0:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:6.0.1:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.23:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.21:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.14:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.12:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.7:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:4.0.5:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.22:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.20:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.13:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.11:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.6:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.4:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.0:beta4:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.0:beta2:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:6.0.0:beta2:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:6.0.0:alpha1:*:*:*:*:*:*

Configuration 2:

cpe:/o:debian:debian_linux:7.0:*:*:*:*:*:*:*

OR cpe:/o:debian:debian_linux:8.0:*:*:*:*:*:*:*

OR cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Configuration CCN 1:

cpe:/a:otrs:otrs:4.0.26:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:5.0.24:*:*:*:*:*:*:*

OR cpe:/a:otrs:otrs:6.0.1:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:com.ubuntu.xenial:def:2017169210000000	V	CVE-2017-16921 on Ubuntu 16.04 LTS (xenial) - medium.	2017-12-08
oval:com.ubuntu.artful:def:201716921000	V	CVE-2017-16921 on Ubuntu 17.10 (artful) - medium.	2017-12-08
oval:com.ubuntu.xenial:def:201716921000	V	CVE-2017-16921 on Ubuntu 16.04 LTS (xenial) - medium.	2017-12-08
oval:com.ubuntu.disco:def:2017169210000000	V	CVE-2017-16921 on Ubuntu 19.04 (disco) - medium.	2017-12-08
oval:com.ubuntu.bionic:def:201716921000	V	CVE-2017-16921 on Ubuntu 18.04 LTS (bionic) - medium.	2017-12-08
oval:com.ubuntu.cosmic:def:2017169210000000	V	CVE-2017-16921 on Ubuntu 18.10 (cosmic) - medium.	2017-12-08
oval:com.ubuntu.cosmic:def:201716921000	V	CVE-2017-16921 on Ubuntu 18.10 (cosmic) - medium.	2017-12-08
oval:com.ubuntu.bionic:def:2017169210000000	V	CVE-2017-16921 on Ubuntu 18.04 LTS (bionic) - medium.	2017-12-08
oval:com.ubuntu.trusty:def:201716921000	V	CVE-2017-16921 on Ubuntu 14.04 LTS (trusty) - medium.	2017-12-08