VDB-51917 · CVE-2010-0283 · BID 38260

MIT Kerberos 5-1.7/5-1.7.1/5-1.8 Key Distribution Center input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

A vulnerability was found in MIT Kerberos 5-1.7/5-1.7.1/5-1.8 (Network Authentication Software) and classified as critical. This issue affects an unknown code block of the component Key Distribution Center. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. The summary by CVE is:

The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.7 before 1.7.2, and 1.8 alpha, allows remote attackers to cause a denial of service (assertion failure and daemon crash) via an invalid (1) AS-REQ or (2) TGS-REQ request.

The weakness was disclosed 02/22/2010 by Emmanuel Bouillon with NATO C3 Agency (Website). The advisory is shared at vupen.com. The identification of this vulnerability is CVE-2010-0283 since 01/12/2010. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 45571 (FreeBSD : krb5 -- multiple denial of service vulnerabilities (9ac0f9c4-492b-11df-83fb-0015587e2cc1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165243 (SUSE Security Update for Multiple Packages (SUSE-SR:2010:005)).

Upgrading to version 5-1.8 eliminates this vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 9566.

The vulnerability is also documented in the vulnerability database at Tenable (45571). The entries 51778, 51153, 51041 and 50972 are pretty similar.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 45571
Nessus Name: FreeBSD : krb5 -- multiple denial of service vulnerabilities (9ac0f9c4-492b-11df-83fb-0015587e2cc1)
Nessus File: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 67291
OpenVAS Name: FreeBSD Ports: krb5
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kerberos 5-1.8
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
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Timelineinfo

01/12/2010 🔍
02/16/2010 +35 days 🔍
02/16/2010 +0 days 🔍
02/16/2010 +0 days 🔍
02/17/2010 +1 days 🔍
02/22/2010 +5 days 🔍
02/22/2010 +0 days 🔍
02/22/2010 +0 days 🔍
04/20/2010 +57 days 🔍
03/18/2015 +1793 days 🔍
02/21/2017 +706 days 🔍

Sourcesinfo

Vendor: mit.edu

Advisory: vupen.com⛔
Researcher: Emmanuel Bouillon
Organization: NATO C3 Agency
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2010-0283 (🔍)
OVAL: 🔍

SecurityTracker: 1023593 - Kerberos KDC Input Validation Flaw in process_as_req() Lets Remote Users Deny Service
Vulnerability Center: 24891 - MIT Kerberos 5 1.7 and 1.7.1 KDC Service Remote Denial Of Service Vulnerability, High
SecurityFocus: 38260 - MIT Kerberos KDC 'handle_tgt_authdata()' Denial Of Service Vulnerability
Secunia: 38598 - Kerberos KDC Authorization Denial of Service Vulnerability, Moderately Critical
Vupen: ADV-2010-1481

See also: 🔍

Entryinfo

Created: 03/18/2015 15:15
Updated: 02/21/2017 17:10
Changes: 03/18/2015 15:15 (70), 02/21/2017 17:10 (22)
Complete: 🔍
Cache ID: 18:400:103

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