CGit up to 0.11 HTTP Header authenticate_post Content-Length memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in CGit up to 0.11 and classified as critical. The impacted element is the function authenticate_post of the component HTTP Header Handler. The manipulation of the argument Content-Length leads to memory corruption. This vulnerability is referenced as CVE-2016-1901. Remote exploitation of the attack is possible. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in CGit up to 0.11. This issue affects the function authenticate_post of the component HTTP Header Handler. The manipulation of the argument Content-Length with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Integer overflow in the authenticate_post function in CGit before 0.12 allows remote attackers to have unspecified impact via a large value in the Content-Length HTTP header, which triggers a buffer overflow.

The weakness was published 01/20/2016 (oss-sec). It is possible to read the advisory at openwall.com. The identification of this vulnerability is CVE-2016-1901 since 01/13/2016. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/05/2022).

The vulnerability scanner Nessus provides a plugin with the ID 88028 (FreeBSD : cgit -- multiple vulnerabilities (62c0dbbd-bfce-11e5-b5fe-002590263bf5)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 175701 (Debian Security Update for cgit (DSA 3545-1)).

Upgrading to version 0.12 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (88028), SecurityFocus (BID 80033†) and Vulnerability Center (SBV-56314†). Similar entries are available at VDB-80613 and VDB-80614. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
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: Memory corruption
CWE: CWE-119
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: 88028
Nessus Name: FreeBSD : cgit -- multiple vulnerabilities (62c0dbbd-bfce-11e5-b5fe-002590263bf5)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for cgit FEDORA-2016-215
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: CGit 0.12
Patch: git.zx2c4.com

Timelineinfo

01/13/2016 🔍
01/13/2016 +0 days 🔍
01/19/2016 +6 days 🔍
01/19/2016 +0 days 🔍
01/20/2016 +0 days 🔍
01/20/2016 +0 days 🔍
01/20/2016 +0 days 🔍
01/22/2016 +1 days 🔍
02/01/2016 +10 days 🔍
07/05/2022 +2345 days 🔍

Sourcesinfo

Advisory: FEDORA-2016-215b507409
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-1901 (🔍)
GCVE (CVE): GCVE-0-2016-1901
GCVE (VulDB): GCVE-100-80615

OVAL: 🔍

SecurityFocus: 80033 - Cgit Multiple Security Vulnerabilities
Vulnerability Center: 56314 - CGit before 0.12 Remote Integer Overflow Vulnerability in the authenticate_post Function, High

See also: 🔍

Entryinfo

Created: 01/22/2016 09:32
Updated: 07/05/2022 18:23
Changes: 01/22/2016 09:32 (61), 07/23/2018 07:35 (24), 07/05/2022 18:23 (4)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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