s3dvt up to 0.2.2 main.c pty_init_terminal/pipe_init_terminal access control

HistoryDiffrelatejsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.4	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical was found in s3dvt up to 0.2.2. The impacted element is the function pty_init_terminal/pipe_init_terminal of the file main.c. Such manipulation leads to access control. This vulnerability is uniquely identified as CVE-2013-6876. Local access is required to approach this attack. No exploit exists. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in s3dvt up to 0.2.2. It has been rated as critical. Affected by this issue is the function pty_init_terminal/pipe_init_terminal of the file main.c. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The (1) pty_init_terminal and (2) pipe_init_terminal functions in main.c in s3dvt 0.2.2 and earlier allows local users to gain privileges by leveraging setuid permissions and usage of bash 4.3 and earlier. NOTE: this vulnerability was fixed with commit ad732f00b411b092c66a04c359da0f16ec3b387, but the version number was not changed.

The bug was discovered 06/02/2014. The weakness was disclosed 04/07/2018 by Hector Marco as not defined posting (Bugtraq). The advisory is shared for download at securityfocus.com. This vulnerability is handled as CVE-2013-6876 since 11/26/2013. The attack needs to be approached locally. The successful exploitation requires a simple authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability was handled as a non-public zero-day exploit for at least 1404 days. During that time the estimated underground price was around $0-$5k.

Applying the patch ad732f00b411b092c66a04c359da0f16ec3b387 is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 67789†). The entry VDB-115893 is pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

s3dvt

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: ad732f00b411b092c66a04c359da0f16ec3b387

Timelineinfo

11/26/2013 🔍
06/02/2014 +188 days 🔍
06/03/2014 +1 days 🔍
04/06/2018 +1403 days 🔍
04/07/2018 +1 days 🔍
04/07/2018 +0 days 🔍
02/27/2023 +1787 days 🔍

Sourcesinfo

Advisory: 126887⛔
Researcher: Hector Marco
Status: Not defined

CVE: CVE-2013-6876 (🔍)
GCVE (CVE): GCVE-0-2013-6876
GCVE (VulDB): GCVE-100-115892
SecurityFocus: 67789 - s3dvt 'main.c' Multiple Local Privilege Escalation Vulnerabilities

See also: 🔍

Entryinfo

Created: 04/07/2018 09:53
Updated: 02/27/2023 09:30
Changes: 04/07/2018 09:53 (65), 01/22/2020 18:03 (1), 02/27/2023 09:30 (4)
Complete: 🔍
Cache ID: 216::103