Firejail up to 0.9.38.9/0.9.44.5 Sandbox access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Firejail up to 0.9.38.9/0.9.44.5. Impacted is an unknown function of the component Sandbox. Such manipulation leads to access control. This vulnerability is traded as CVE-2017-5940. An attack has to be approached locally. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Firejail up to 0.9.38.9/0.9.44.5. It has been rated as critical. Affected by this issue is an unknown code block of the component Sandbox. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Firejail before 0.9.44.6 and 0.9.38.x LTS before 0.9.38.10 LTS does not comprehensively address dotfile cases during its attempt to prevent accessing user files with an euid of zero, which allows local users to conduct sandbox-escape attacks via vectors involving a symlink and the --private option. NOTE: this vulnerability exists because of an incomplete fix for CVE-2017-5180.

The bug was discovered 01/31/2017. The weakness was shared 02/09/2017 by Sebastian Krahmer (oss-sec). The advisory is available at openwall.com. This vulnerability is handled as CVE-2017-5940 since 02/09/2017. Local access is required to approach this attack. The requirement for exploitation is a simple authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 9 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 97092 (GLSA-201702-03 : Firejail: Privilege escalation), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l.

Upgrading to version 0.9.38.10 or 0.9.44.6 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (97092) and SecurityFocus (BID 96221†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 6.9

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

NVD Base Score: 8.8
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: Access control
CWE: CWE-284 / CWE-266
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: 97092
Nessus Name: GLSA-201702-03 : Firejail: Privilege escalation
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Firejail 0.9.38.10/0.9.44.6
Patch: github.com

Timelineinfo

01/31/2017 🔍
02/09/2017 +9 days 🔍
02/09/2017 +0 days 🔍
02/09/2017 +0 days 🔍
02/09/2017 +0 days 🔍
02/09/2017 +0 days 🔍
02/10/2017 +1 days 🔍
02/10/2017 +0 days 🔍
11/12/2022 +2101 days 🔍

Sourcesinfo

Advisory: 38d418505e9ee2d326557e5639e8da49c298858f
Researcher: Sebastian Krahmer
Status: Not defined

CVE: CVE-2017-5940 (🔍)
GCVE (CVE): GCVE-0-2017-5940
GCVE (VulDB): GCVE-100-96794
SecurityFocus: 96221 - Firejail Incomplete Fix CVE-2017-5940 Local Privilege Escalation Vulnerability
OSVDB: - CVE-2017-5940 - Firejail - Sandbox-Escape Issue

Entryinfo

Created: 02/10/2017 11:22
Updated: 11/12/2022 16:17
Changes: 02/10/2017 11:22 (66), 09/01/2020 17:23 (7), 11/12/2022 16:17 (4)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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