Debian shadow 1%3a4.1.4 input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Debian shadow 1%3a4.1.4. It has been rated as critical. This affects an unknown part. Performing a manipulation results in input validation. This vulnerability was named CVE-2011-0721. There is no available exploit.

Detailsinfo

A vulnerability was found in Debian shadow 1%3a4.1.4. It has been classified as critical. This affects an unknown function. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity, and availability. The summary by CVE is:

Multiple CRLF injection vulnerabilities in (1) chfn and (2) chsh in shadow 1:4.1.4 allow local users to add new users or groups to /etc/passwd via the GECOS field.

The weakness was presented 02/18/2011 by Kees Cook (Website). The advisory is shared at xforce.iss.net. This vulnerability is uniquely identified as CVE-2011-0721. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 54899 (Slackware 13.1 / current : shadow (SSA:2011-086-03)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Slackware Local Security Checks.

A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (65564), Tenable (54899), SecurityFocus (BID 46426†), OSVDB (70895†) and Vulnerability Center (SBV-29846†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 6.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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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: 🔍

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: 54899
Nessus Name: Slackware 13.1 / current : shadow (SSA:2011-086-03)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 68999
OpenVAS Name: Debian Security Advisory DSA 2164-1 (shadow)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Timelineinfo

02/01/2011 🔍
02/16/2011 +15 days 🔍
02/16/2011 +0 days 🔍
02/18/2011 +2 days 🔍
02/18/2011 +0 days 🔍
02/18/2011 +0 days 🔍
02/18/2011 +0 days 🔍
02/20/2011 +1 days 🔍
05/28/2011 +97 days 🔍
03/20/2015 +1392 days 🔍
10/17/2021 +2403 days 🔍

Sourcesinfo

Vendor: debian.org

Advisory: USN-1065-1
Researcher: Kees Cook
Status: Not defined

CVE: CVE-2011-0721 (🔍)
GCVE (CVE): GCVE-0-2011-0721
GCVE (VulDB): GCVE-100-56553

OVAL: 🔍

X-Force: 65564
SecurityFocus: 46426 - Debian/Ubuntu Linux 'shadow' Package Local Security Bypass Vulnerability
Secunia: 42505
OSVDB: 70895 - shadow chfn/chsh Utility GECOS Field CRLF Injection
Vulnerability Center: 29846 - shadow 1:4.1.4 Local Security Bypass Vulnerability via the GECOS Field, Medium

Entryinfo

Created: 03/20/2015 16:16
Updated: 10/17/2021 15:02
Changes: 03/20/2015 16:16 (60), 03/16/2017 15:27 (11), 10/17/2021 14:59 (5), 10/17/2021 15:02 (1)
Complete: 🔍
Cache ID: 216::103

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

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