Firejail /dev/shm/firejail access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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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.
6.5$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Firejail. Affected by this vulnerability is an unknown functionality of the file /dev/shm/firejail. The manipulation leads to access control. This vulnerability is listed as CVE-2016-10121. The attack must be carried out locally. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Firejail (the affected version is unknown). This issue affects an unknown code of the file /dev/shm/firejail. 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. The summary by CVE is:

Firejail uses weak permissions for /dev/shm/firejail and possibly other files, which allows local users to gain privileges.

The bug was discovered 01/05/2017. The weakness was presented 04/13/2017 (oss-sec). It is possible to read the advisory at openwall.com. The identification of this vulnerability is CVE-2016-10121 since 01/06/2017. Attacking locally is a requirement. A simple authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 98 days. During that time the estimated underground price was around $0-$5k.

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

See VDB-99799, VDB-99800, VDB-99801 and VDB-99802 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/05/2017 🔍
01/06/2017 +1 days 🔍
04/13/2017 +97 days 🔍
04/13/2017 +0 days 🔍
04/14/2017 +1 days 🔍
08/30/2020 +1234 days 🔍

Sourcesinfo

Advisory: openwall.com
Status: Not defined

CVE: CVE-2016-10121 (🔍)
GCVE (CVE): GCVE-0-2016-10121
GCVE (VulDB): GCVE-100-99803
OSVDB: - CVE-2016-10121 - Firejail - Privilege Escalation Issue

See also: 🔍

Entryinfo

Created: 04/14/2017 10:14
Updated: 08/30/2020 16:46
Changes: 04/14/2017 10:14 (49), 08/30/2020 16:46 (8)
Complete: 🔍
Cache ID: 216::103

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