MIT Kerberos 5-1.5 lib/kdb/kdb_default.c krb5_def_store_mkey memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.3$5k-$25k0.00

A vulnerability was found in MIT Kerberos 5-1.5 (Network Authentication Software). It has been rated as critical. Affected by this issue is the function krb5_def_store_mkey in the library lib/kdb/kdb_default.c. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Double free vulnerability in the krb5_def_store_mkey function in lib/kdb/kdb_default.c in MIT Kerberos 5 (krb5) 1.5 has unknown impact and remote authenticated attack vectors. NOTE: the free operations occur in code that stores the krb5kdc master key, and so the attacker must have privileges to store this key.

The weakness was published 12/08/2007 with Gentoo (Website). The advisory is available at issues.rpath.com. This vulnerability is handled as CVE-2007-5972 since 11/14/2007. The exploitation is known to be easy. The attack may be launched remotely. The successful exploitation needs a simple authentication. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 07/29/2021).

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 29991 (openSUSE 10 Security Update : krb5 (krb5-4851)), 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 165712 (SUSE Enterprise Linux Security Update (SUSE-SR:2008:002)).

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 (38917) and Tenable (29991). Similar entries are available at 3410, 3547, 37647 and 39622.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.3

VulDB Base Score: 8.8
VulDB Temp Score: 8.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 29991
Nessus Name: openSUSE 10 Security Update : krb5 (krb5-4851)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 840414
OpenVAS Name: Ubuntu Update for krb5 vulnerabilities USN-924-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

Timelineinfo

11/14/2007 🔍
12/05/2007 +21 days 🔍
12/05/2007 +0 days 🔍
12/06/2007 +1 days 🔍
12/08/2007 +2 days 🔍
01/21/2008 +43 days 🔍
05/02/2008 +102 days 🔍
03/16/2015 +2508 days 🔍
07/29/2021 +2327 days 🔍

Sourcesinfo

Vendor: mit.edu

Advisory: issues.rpath.com⛔
Organization: Gentoo
Status: Not defined
Confirmation: 🔍

CVE: CVE-2007-5972 (🔍)
OVAL: 🔍

X-Force: 38917
Vulnerability Center: 17426 - MIT Kerberos 5 Double-free vulnerability Allows Remote DoS, Medium
SecurityFocus: 26750 - MIT Kerberos Multiple Memory Corruption Vulnerabilities
Secunia: 28636
OSVDB: 44747 - MIT Kerberos 5 (krb5) lib/kdb/kdb_default.c krb5_def_store_mkey Function Double-free Unspecified Issue
Vupen: ADV-2010-1192

See also: 🔍

Entryinfo

Created: 03/16/2015 13:43
Updated: 07/29/2021 20:53
Changes: 03/16/2015 13:43 (70), 08/22/2017 11:26 (8), 07/29/2021 20:53 (3)
Complete: 🔍

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