git-annex up to 6.2017 SSH URL input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

A vulnerability, which was classified as critical, has been found in git-annex up to 6.2017 (Versioning Software). This issue affects an unknown functionality of the component SSH URL Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

git-annex before 6.20170818 allows remote attackers to execute arbitrary commands via an ssh URL with an initial dash character in the hostname, as demonstrated by an ssh://-eProxyCommand= URL, a related issue to CVE-2017-9800, CVE-2017-12836, CVE-2017-1000116, and CVE-2017-1000117.

The bug was discovered 08/20/2017. The weakness was disclosed 08/20/2017 (Website). The advisory is shared at source.git-annex.branchable.com. The identification of this vulnerability is CVE-2017-12976 since 08/20/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 102848 (openSUSE Security Update : git-annex (openSUSE-2017-986)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176189 (Debian Security Update for git-annex (DSA 4010-1)).

Upgrading to version 6.20170818 eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (102848).

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 102848
Nessus Name: openSUSE Security Update : git-annex (openSUSE-2017-986)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53380
OpenVAS Name: Debian Security Advisory DSA 4010-1 (git-annex - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: git-annex 6.20170818
Patch: c24d0f0e8984576654e2be149005bc884fe0403a

Timelineinfo

08/20/2017 🔍
08/20/2017 +0 days 🔍
08/20/2017 +0 days 🔍
08/20/2017 +0 days 🔍
08/21/2017 +1 days 🔍
08/30/2017 +9 days 🔍
08/31/2017 +1 days 🔍
12/16/2022 +1933 days 🔍

Sourcesinfo

Advisory: DLA 1495-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-12976 (🔍)
OVAL: 🔍

Entryinfo

Created: 08/21/2017 09:09 AM
Updated: 12/16/2022 09:11 AM
Changes: 08/21/2017 09:09 AM (67), 11/09/2019 01:54 PM (9), 12/16/2022 09:11 AM (6)
Complete: 🔍
Cache ID: 18:59F:40

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