Fail2ban up to 0.8.10 Locking input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Fail2ban. Affected is an unknown function of the component Locking. Executing a manipulation can lead to input validation. The identification of this vulnerability is CVE-2013-7177. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Fail2ban. It has been declared as critical. This vulnerability affects an unknown code block of the component Locking. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

config/filter.d/cyrus-imap.conf in the cyrus-imap filter in Fail2ban before 0.8.11 allows remote attackers to trigger the blocking of an arbitrary IP address via a crafted e-mail address that matches an improperly designed regular expression.

The weakness was shared 02/01/2014 as confirmed advisory (CERT.org). The advisory is available at kb.cert.org. This vulnerability was named CVE-2013-7177 since 12/19/2013. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 82169 (Debian DLA-21-1 : fail2ban security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 166936 (OpenSuSE Security Update for fail2ban tool (openSUSE-SU-2014:0493-1)).

Upgrading to version 0.6.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (90831), Tenable (82169) and Vulnerability Center (SBV-44463†). The entries VDB-66273 and VDB-64808 are related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

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

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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: 82169
Nessus Name: Debian DLA-21-1 : fail2ban security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 702979
OpenVAS Name: Debian Security Advisory DSA 2979-1 (fail2ban - security update)
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 0.6.1
Patch: github.com

Timelineinfo

12/19/2013 🔍
01/28/2014 +40 days 🔍
02/01/2014 +4 days 🔍
02/01/2014 +0 days 🔍
05/13/2014 +101 days 🔍
03/24/2015 +315 days 🔍
08/17/2024 +3434 days 🔍

Sourcesinfo

Product: github.com

Advisory: bd175f026737d66e7110868fb50b3760ff75e087
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-7177 (🔍)
GCVE (CVE): GCVE-0-2013-7177
GCVE (VulDB): GCVE-100-66274

OVAL: 🔍

CERT: 🔍
X-Force: 90831
SecurityFocus: 65184
Vulnerability Center: 44463 - Fail2ban before 0.8.11 Remote DoS via a Specially Crafted Email Address in the cyrus-imap Filter - CVE-2013-7177, Medium

See also: 🔍

Entryinfo

Created: 03/24/2015 15:54
Updated: 08/17/2024 23:49
Changes: 03/24/2015 15:54 (57), 05/28/2017 02:38 (11), 02/01/2022 08:29 (4), 02/01/2022 08:32 (2), 08/17/2024 23:49 (15)
Complete: 🔍
Cache ID: 216::103

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