2007-5902 | MIT Kerberos svc_auth_gss.c svcauth_gss_get_principal numeric error (BID-26750 / XFDB-38919)

By Max On Jul 29, 2021

CVSS Meta Temp Score	Current Exploit Price (≈)	CTI Interest Score
9.3	$5k-$25k	0.43

A vulnerability was found in MIT Kerberos 5 (Network Authentication Software). It has been classified as critical. Affected is the function svcauth_gss_get_principal in the library lib/rpc/svc_auth_gss.c of the component Kerberos. CWE is classifying the issue as CWE-189. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Integer overflow in the svcauth_gss_get_principal function in lib/rpc/svc_auth_gss.c in MIT Kerberos 5 (krb5) allows remote attackers to have an unknown impact via a large length value for a GSS client name in an RPC request.

The weakness was presented 12/08/2007 with Gentoo (Website). The advisory is shared for download at vupen.com. This vulnerability is traded as CVE-2007-5902 since 11/09/2007. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn’t require any form of authentication. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 07/29/2021).

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 46688 (Ubuntu 6.06 LTS / 8.04 LTS / 9.04 / 9.10 : krb5 vulnerabilities (USN-940-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu 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 SecurityFocus (BID 26750), X-Force (38919), Secunia (SA28636), Vulnerability Center (SBV-17624) and Tenable (46688). See 3410, 3547, 37647 and 39622 for similar entries.

Type

Vendor

Name

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.3

VulDB Base Score: 9.8
VulDB Temp Score: 9.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

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🔍	🔍	🔍	🔍	🔍	🔍
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Class: Unknown
CWE: CWE-189
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 46688
Nessus Name: Ubuntu 6.06 LTS / 8.04 LTS / 9.04 / 9.10 : krb5 vulnerabilities (USN-940-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

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

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfoedit

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍Recommended: no mitigation known
Status: 🔍11/09/2007 🔍
11/15/2007 +6 days 🔍
12/05/2007 +20 days 🔍
12/06/2007 +1 days 🔍
12/08/2007 +2 days 🔍
02/14/2008 +67 days 🔍
05/02/2008 +78 days 🔍
05/20/2010 +747 days 🔍
03/16/2015 +1761 days 🔍
09/12/2016 +546 days 🔍
07/29/2021 +1781 days 🔍Vendor: http://www.mit.edu/

Advisory: vupen.com
Organization: Gentoo
Status: Not defined
Confirmation: 🔍

CVE: CVE-2007-5902 (🔍)
OVAL: 🔍

SecurityFocus: 26750 – MIT Kerberos Multiple Memory Corruption Vulnerabilities
Secunia: 28636
X-Force: 38919
Vulnerability Center: 17624 – MIT Kerberos 5 (krb5) Integer Overflow in the svcauth_gss_get_principal Function, High
OSVDB: 44748 – MIT Kerberos 5 (krb5) lib/rpc/svc_auth_gss.c svcauth_gss_get_principal Function RPC Request GSS Client Name Overflow
Vupen: ADV-2010-1192