MIT Kerberos 5-1.8/5-1.8.1/5-1.8.2/5-1.8.3/5-1.8.4 Key Distribution Center krb5_db2_lockout_audit input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.5$5k-$25k0.00

A vulnerability has been found in MIT Kerberos 5-1.8/5-1.8.1/5-1.8.2/5-1.8.3/5-1.8.4 (Network Authentication Software) and classified as critical. Affected by this vulnerability is the function krb5_db2_lockout_audit of the component Key Distribution Center. 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. The summary by CVE is:

The krb5_db2_lockout_audit function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8 through 1.8.4, when the db2 (aka Berkeley DB) back end is used, allows remote attackers to cause a denial of service (assertion failure and daemon exit) via unspecified vectors, a different vulnerability than CVE-2011-1528.

The weakness was shared 10/20/2011 as confirmed advisory (CERT.org). It is possible to read the advisory at kb.cert.org. This vulnerability is known as CVE-2011-4151 since 10/20/2011. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/24/2021).

The vulnerability scanner Nessus provides a plugin with the ID 57655 (GLSA-201201-13 : MIT Kerberos 5: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks.

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

The vulnerability is also documented in the databases at X-Force (70891) and Tenable (57655). The entries 59178, 59177 and 59176 are related to this item.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.5
VulDB Temp Score: 7.5
VulDB Vector: 🔍
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CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

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Current Price Estimation: 🔍

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Nessus ID: 57655
Nessus Name: GLSA-201201-13 : MIT Kerberos 5: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 863620
OpenVAS Name: Fedora Update for krb5 FEDORA-2011-14650
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/18/2011 🔍
10/19/2011 +1 days 🔍
10/20/2011 +1 days 🔍
10/20/2011 +0 days 🔍
10/20/2011 +0 days 🔍
07/07/2014 +991 days 🔍
03/23/2015 +259 days 🔍
11/24/2021 +2438 days 🔍

Sourcesinfo

Vendor: mit.edu

Advisory: kb.cert.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-4151 (🔍)
X-Force: 70891
Vulnerability Center: 45267 - MIT Kerberos 5 1.8-1.8.4 Remote DoS via Unspecified Vectors, High
SecurityFocus: 50273 - MIT Kerberos Multiple Denial of Service Vulnerabilities

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/24/2021 14:44
Changes: 03/23/2015 16:50 (66), 06/01/2017 08:10 (4), 11/24/2021 14:44 (3)
Complete: 🔍

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