FreeBSD 4.4/4.5 Kerberos5 k5su privileges management

CVSS Meta Temp Score
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability was found in FreeBSD 4.4/4.5. It has been rated as problematic. The impacted element is an unknown function of the file k5su of the component Kerberos5. The manipulation leads to privileges management. This vulnerability is documented as CVE-2002-0755. Additionally, an exploit exists. Adding more authentication is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in FreeBSD 4.4/4.5 (Operating System). This issue affects an unknown function of the file k5su of the component Kerberos5. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Kerberos 5 su (k5su) in FreeBSD 4.5 and earlier does not verify that a user is a member of the wheel group before granting superuser privileges, which could allow unauthorized users to execute commands as root.

The weakness was released 05/20/2002 (Website). The advisory is shared at ftp.freebsd.org. The identification of this vulnerability is CVE-2002-0755. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details as well as a exploit are known. MITRE ATT&CK project uses the attack technique T1068 for this issue.

After immediately, there has been an exploit disclosed. It is declared as proof-of-concept.

It is possible to mitigate the problem by adding an authentication mechanism.

The vulnerability is also documented in the databases at X-Force (9125), SecurityFocus (BID 4777†), OSVDB (4893†) and Vulnerability Center (SBV-22758†). Entry connected to this vulnerability is available at VDB-18640. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 7.7

VulDB Base Score: 8.4
VulDB Temp Score: 7.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Authentication
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

05/20/2002 🔍
05/20/2002 +0 days 🔍
05/20/2002 +0 days 🔍
05/20/2002 +0 days 🔍
08/12/2002 +84 days 🔍
04/03/2004 +600 days 🔍
07/05/2009 +1918 days 🔍
07/22/2014 +1843 days 🔍
02/11/2017 +935 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: ftp.freebsd.org
Status: Not defined

CVE: CVE-2002-0755 (🔍)
GCVE (CVE): GCVE-0-2002-0755
GCVE (VulDB): GCVE-100-18641
X-Force: 9125
SecurityFocus: 4777 - FreeBSD k5su Wheel Group Membership Validation Vulnerability
OSVDB: 4893 - FreeBSD k5su Group Check Failure
Vulnerability Center: 22758 - FreeBSD <= 4.5 Kerberos 5 Wheel Group Membership Arbitrary Code Execution Vulnerability, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 07/22/2014 23:21
Updated: 02/11/2017 10:20
Changes: 07/22/2014 23:21 (53), 02/11/2017 10:20 (10)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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