Todd Miller sudo up to 1.6.3 P7 File Descriptors proc sysctl access control

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Todd Miller sudo up to 1.6.3 P7. This impacts the function sysctl of the file proc of the component File Descriptors. Executing a manipulation can lead to access control. This vulnerability is tracked as CVE-2013-2776. The attack is restricted to local execution. No exploit exists.

Detailsinfo

A vulnerability was found in Todd Miller sudo up to 1.6.3 P7 (Operating System Utility Software). It has been declared as problematic. This vulnerability affects the function sysctl of the file proc of the component File Descriptors. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

sudo 1.3.5 through 1.7.10p5 and 1.8.0 through 1.8.6p6, when running on systems without /proc or the sysctl function with the tty_tickets option enabled, does not properly validate the controlling terminal device, which allows local users with sudo permissions to hijack the authorization of another terminal via vectors related to connecting to the standard input, output, and error file descriptors of another terminal. NOTE: this is one of three closely-related vulnerabilities that were originally assigned CVE-2013-1776, but they have been SPLIT because of different affected versions.

The weakness was disclosed 04/08/2013 as Bug 916365 as not defined bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability was named CVE-2013-2776. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 01/02/2022). The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability scanner Nessus provides a plugin with the ID 71399 (Amazon Linux AMI : sudo Multiple Vulnerabilities (ALAS-2013-259)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350485 (Amazon Linux Security Advisory for sudo: ALAS-2013-259).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (82453), Tenable (71399), SecurityFocus (BID 58207†) and Vulnerability Center (SBV-52161†). The entries VDB-7837, VDB-7841 and VDB-63953 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.9

VulDB Base Score: 5.9
VulDB Temp Score: 5.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 71399
Nessus Name: Amazon Linux AMI : sudo Multiple Vulnerabilities (ALAS-2013-259)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 892642
OpenVAS Name: Debian Security Advisory DSA 2642-1 (sudo - several issues
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/27/2013 🔍
04/08/2013 +39 days 🔍
04/08/2013 +0 days 🔍
04/08/2013 +0 days 🔍
03/24/2015 +715 days 🔍
08/18/2015 +147 days 🔍
01/02/2022 +2329 days 🔍

Sourcesinfo

Advisory: Bug 916365
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-2776 (🔍)
GCVE (CVE): GCVE-0-2013-2776
GCVE (VulDB): GCVE-100-63952
X-Force: 82453
SecurityFocus: 58207
Vulnerability Center: 52161 - Todd Miller Sudo Security Bypass Vulnerability Via Terminal Connection Vectors - CVE-2013-2776, Low

See also: 🔍

Entryinfo

Created: 03/24/2015 15:54
Updated: 01/02/2022 07:15
Changes: 03/24/2015 15:54 (43), 06/16/2017 09:03 (20), 01/02/2022 06:53 (2), 01/02/2022 07:04 (7), 01/02/2022 07:15 (1)
Complete: 🔍
Cache ID: 216::103

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