Git up to 1.9.2 Branch Name git-prompt.sh PS1 escape output

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Git up to 1.9.2. It has been rated as critical. Affected is an unknown function of the file contrib/completion/git-prompt.sh of the component Branch Name Handler. The manipulation of the argument PS1 leads to escape output. This vulnerability is listed as CVE-2014-9938. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Git up to 1.9.2 (Versioning Software). This issue affects an unknown function of the file contrib/completion/git-prompt.sh of the component Branch Name Handler. The manipulation of the argument PS1 with an unknown input leads to a escape output vulnerability. Using CWE to declare the problem leads to CWE-116. The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

contrib/completion/git-prompt.sh in Git before 1.9.3 does not sanitize branch names in the PS1 variable, allowing a malicious repository to cause code execution.

The bug was discovered 05/01/2017. The weakness was presented 03/20/2017 (GitHub Repository). The advisory is shared at github.com. The identification of this vulnerability is CVE-2014-9938 since 03/19/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 97938 (Ubuntu 14.04 LTS : git vulnerability (USN-3243-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 157512 (Oracle Enterprise Linux Security Update for git (ELSA-2017-2004)).

Upgrading to version 1.9.3 eliminates this vulnerability. A possible mitigation has been published 3 days after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (97938). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Escape output
CWE: CWE-116 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 97938
Nessus Name: Ubuntu 14.04 LTS : git vulnerability (USN-3243-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 841810
OpenVAS Name: Ubuntu Update for git USN-3243-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Upgrade: Git 1.9.3

Timelineinfo

03/19/2017 🔍
03/19/2017 +0 days 🔍
03/20/2017 +1 days 🔍
03/20/2017 +0 days 🔍
03/23/2017 +3 days 🔍
03/24/2017 +1 days 🔍
05/01/2017 +38 days 🔍
09/10/2020 +1228 days 🔍

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2014-9938 (🔍)
GCVE (CVE): GCVE-0-2014-9938
GCVE (VulDB): GCVE-100-98273
OSVDB: - CVE-2014-9938 - Git - Code Execution Issue

Entryinfo

Created: 03/20/2017 07:55
Updated: 09/10/2020 09:23
Changes: 03/20/2017 07:55 (74), 09/10/2020 09:23 (4)
Complete: 🔍
Cache ID: 216:03C:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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