Open Ticket Request System up to 4.0.26/5.0.24/6.0.1 PGP Parameter command injection

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Open Ticket Request System up to 4.0.26/5.0.24/6.0.1. Impacted is an unknown function of the component PGP Handler. The manipulation as part of Parameter leads to command injection. This vulnerability is uniquely identified as CVE-2017-16921. The attack is possible to be carried out remotely. Moreover, an exploit is present. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Open Ticket Request System up to 4.0.26/5.0.24/6.0.1 (Ticket Tracking Software). It has been rated as critical. This issue affects some unknown functionality of the component PGP Handler. The manipulation as part of a Parameter leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The bug was discovered 12/05/2017. The weakness was disclosed 12/08/2017 (Website). The advisory is shared at otrs.com. The identification of this vulnerability is CVE-2017-16921 since 11/21/2017. The attack may be initiated remotely. A simple authentication is required for exploitation. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1202 for this issue.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 105330 (Debian DSA-4066-1 : otrs2 - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176252 (Debian Security Update for otrs2 (DSA 4066-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (43853) and Tenable (105330). The entry VDB-110356 is pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.2

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 105330
Nessus Name: Debian DSA-4066-1 : otrs2 - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 57578
OpenVAS Name: OTRS Remote Code Execution Vulnerability - Dec 17
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

11/21/2017 🔍
12/05/2017 +14 days 🔍
12/08/2017 +3 days 🔍
12/08/2017 +0 days 🔍
12/09/2017 +1 days 🔍
12/17/2017 +8 days 🔍
12/18/2017 +1 days 🔍
06/12/2024 +2368 days 🔍

Sourcesinfo

Advisory: 162295
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-16921 (🔍)
GCVE (CVE): GCVE-0-2017-16921
GCVE (VulDB): GCVE-100-110357

OVAL: 🔍
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 12/09/2017 11:40
Updated: 06/12/2024 22:42
Changes: 12/09/2017 11:40 (75), 12/12/2019 21:59 (7), 01/17/2023 10:05 (4), 01/17/2023 10:12 (1), 06/12/2024 22:42 (14)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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