MIT Kerberos up to 5-1.4.1 krb5_recvauth memory corruption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in MIT Kerberos up to 5-1.4.1. The impacted element is the function krb5_recvauth. Such manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2005-1689. No exploit exists. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in MIT Kerberos up to 5-1.4.1 (Network Authentication Software). It has been rated as critical. Affected by this issue is the function krb5_recvauth. 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_recvauth function in MIT Kerberos 5 (krb5) 1.4.1 and earlier allows remote attackers to execute arbitrary code via certain error conditions.

The bug was discovered 07/12/2005. The weakness was disclosed 07/18/2005 by Magnus Hagander as confirmed advisory (CERT.org). The advisory is available at kb.cert.org. This vulnerability is handled as CVE-2005-1689 since 05/24/2005. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 22462 (HP-UX PHSS_33389 : HP-UX Kerberos Client Remote Unauthenticated Execution of Arbitrary Code (HPSBUX02152 SSRT5973 rev.1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family HP-UX Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 117882 (CentOS Security Update for krb5 (CESA-2005:567)).

Applying a patch is able to eliminate this problem. A possible mitigation has been published 2 years after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 9076.

The vulnerability is also documented in the databases at X-Force (21055), Tenable (22462), SecurityFocus (BID 14239†), OSVDB (17841†) and Secunia (SA16052†). The entries VDB-25512, VDB-25801 and VDB-22111 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 22462
Nessus Name: HP-UX PHSS_33389 : HP-UX Kerberos Client Remote Unauthenticated Execution of Arbitrary Code (HPSBUX02152 SSRT5973 rev.1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 54373
OpenVAS Name: Debian Security Advisory DSA 757-1 (krb5)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍

Timelineinfo

05/24/2005 🔍
07/12/2005 +49 days 🔍
07/12/2005 +0 days 🔍
07/12/2005 +0 days 🔍
07/12/2005 +0 days 🔍
07/13/2005 +1 days 🔍
07/13/2005 +0 days 🔍
07/18/2005 +5 days 🔍
07/18/2005 +0 days 🔍
09/20/2006 +429 days 🔍
09/27/2006 +7 days 🔍
03/11/2015 +3087 days 🔍
01/19/2025 +3602 days 🔍

Sourcesinfo

Vendor: mit.edu

Advisory: kb.cert.org
Researcher: Magnus Hagander
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2005-1689 (🔍)
GCVE (CVE): GCVE-0-2005-1689
GCVE (VulDB): GCVE-100-25802

OVAL: 🔍

CERT: 🔍
X-Force: 21055
SecurityFocus: 14239 - MIT Kerberos 5 KRB5_Recvauth Remote Pre-Authentication Double-Free Vulnerability
Secunia: 16052 - Gentoo update for mit-krb5, Highly Critical
OSVDB: 17841 - Kerberos KDC krb5_recvauth code execution
SecurityTracker: 1014461
Vulnerability Center: 8535 - Double Free Error in MIT Kerberos 5 in krb5_recvauth() Function, Medium
Vupen: ADV-2005-1066

See also: 🔍

Entryinfo

Created: 03/11/2015 23:39
Updated: 01/19/2025 05:33
Changes: 03/11/2015 23:39 (94), 06/06/2019 20:24 (5), 01/19/2025 05:33 (17)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!