MIT Kerberos up to 5-1.6.2 Administration svr_policy.c kadm5_modify_policy_internal access control

CVSS Meta Temp Score
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CTI Interest Score
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8.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in MIT Kerberos up to 5-1.6.2. Affected is the function kadm5_modify_policy_internal in the library lib/kadm5/srv/svr_policy.c of the component Administration. Such manipulation leads to access control. This vulnerability is uniquely identified as CVE-2007-4000. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in MIT Kerberos up to 5-1.6.2 (Network Authentication Software) and classified as critical. Affected by this issue is the function kadm5_modify_policy_internal in the library lib/kadm5/srv/svr_policy.c of the component Administration. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The kadm5_modify_policy_internal function in lib/kadm5/srv/svr_policy.c in the Kerberos administration daemon (kadmind) in MIT Kerberos 5 (krb5) 1.5 through 1.6.2 does not properly check return values when the policy does not exist, which might allow remote authenticated users with the "modify policy" privilege to execute arbitrary code via unspecified vectors that trigger a write to an uninitialized pointer.

The bug was discovered 09/04/2007. The weakness was disclosed 09/05/2007 by Garrett Wollman with MIT CSAIL as confirmed advisory (CERT.org). The advisory is available at kb.cert.org. This vulnerability is handled as CVE-2007-4000 since 07/25/2007. The attack may be launched remotely. A simple authentication is required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 43650 (CentOS 5 : krb5 (CESA-2007:0858)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 156043 (Oracle Enterprise Linux Update for Krb5 (ELSA-2007-0858)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 5503.

The vulnerability is also documented in the databases at X-Force (36438), Tenable (43650), SecurityFocus (BID 25533†), OSVDB (37325†) and Secunia (SA26783†). The entries VDB-3292 and VDB-3291 are pretty similar. 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: 9.9
VulDB Meta Temp Score: 8.9

VulDB Base Score: 9.9
VulDB Temp Score: 8.9
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: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 43650
Nessus Name: CentOS 5 : krb5 (CESA-2007:0858)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 861526
OpenVAS Name: Family Connections argv[1] Parameter Remote Arbitrary Command Execution Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
TippingPoint: 🔍

Timelineinfo

07/25/2007 🔍
09/04/2007 +41 days 🔍
09/04/2007 +0 days 🔍
09/04/2007 +0 days 🔍
09/04/2007 +0 days 🔍
09/04/2007 +0 days 🔍
09/05/2007 +1 days 🔍
09/05/2007 +0 days 🔍
09/09/2007 +4 days 🔍
09/12/2007 +3 days 🔍
01/06/2010 +847 days 🔍
03/16/2015 +1895 days 🔍
01/11/2025 +3589 days 🔍

Sourcesinfo

Vendor: mit.edu

Advisory: kb.cert.org
Researcher: Garrett Wollman
Organization: MIT CSAIL
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-4000 (🔍)
GCVE (CVE): GCVE-0-2007-4000
GCVE (VulDB): GCVE-100-38642

OVAL: 🔍

CERT: 🔍
X-Force: 36438
SecurityFocus: 25533 - MIT Kerberos 5 kadmind Server Uninitialized Pointer Remote Code Execution Vulnerability
Secunia: 26783
OSVDB: 37325 - MIT - Kerberos 5 - KAdminD Server Uninitialized Pointer - Remote Code Execution Issue
SecurityTracker: 1018647
Vulnerability Center: 16000 - MIT Kerberos 5 Uninitialized Pointer Vulnerability Allows Remote Attacker Code Execution and DoS, High
Vupen: ADV-2007-3051

See also: 🔍

Entryinfo

Created: 03/16/2015 12:18
Updated: 01/11/2025 18:41
Changes: 03/16/2015 12:18 (87), 07/25/2019 14:22 (5), 01/11/2025 18:41 (17)
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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