Fail2ban up to 0.8.7.1 Remote Code Execution

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Fail2ban. This issue affects some unknown processing. The manipulation results in Remote Code Execution. This vulnerability is identified as CVE-2012-5642. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Fail2ban. It has been classified as critical. Affected is an unknown part. The manipulation with an unknown input leads to a remote code execution vulnerability. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

server/action.py in Fail2ban before 0.8.8 does not properly handle the content of the matches tag, which might allow remote attackers to trigger unsafe behavior in a custom action file via unspecified symbols in this content.

The weakness was released 12/31/2012 (Website). The advisory is shared for download at github.com. This vulnerability is traded as CVE-2012-5642 since 10/24/2012. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 74950 (openSUSE Security Update : fail2ban (openSUSE-SU-2013:0566-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 166125 (SUSE Security Update for fail2ban (openSUSE-SU-2013:0566-1)).

Upgrading to version 0.4.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (80703), Tenable (74950), SecurityFocus (BID 56963†) and Vulnerability Center (SBV-37901†). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Remote Code Execution
CWE: Unknown
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: 74950
Nessus Name: openSUSE Security Update : fail2ban (openSUSE-SU-2013:0566-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 864966
OpenVAS Name: Fedora Update for fail2ban FEDORA-2012-20619
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Fail2ban 0.4.0
Patch: github.com

Timelineinfo

10/24/2012 🔍
12/17/2012 +54 days 🔍
12/17/2012 +0 days 🔍
12/31/2012 +14 days 🔍
12/31/2012 +0 days 🔍
01/06/2013 +6 days 🔍
06/13/2014 +523 days 🔍
03/24/2015 +284 days 🔍
12/29/2024 +3568 days 🔍

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-5642 (🔍)
GCVE (CVE): GCVE-0-2012-5642
GCVE (VulDB): GCVE-100-63276
X-Force: 80703
SecurityFocus: 56963 - Fail2ban CVE-2012-5642 Arbitrary Log Content Injection Vulnerability
Vulnerability Center: 37901 - Fail2ban <0.8.8 Remote Malicious Insertion of Content due to Improper Handling of the Matches Tag, High

Entryinfo

Created: 03/24/2015 12:22
Updated: 12/29/2024 04:12
Changes: 03/24/2015 12:22 (62), 04/23/2017 13:58 (4), 12/21/2021 09:01 (3), 12/21/2021 09:02 (1), 12/29/2024 04:12 (19)
Complete: 🔍
Cache ID: 216:655:103

Once again VulDB remains the best source for vulnerability data.

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