MIT Kerberos 5-1.11.2 schpw.c input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

A vulnerability was found in MIT Kerberos 5-1.11.2 (Network Authentication Software) and classified as problematic. This issue affects an unknown function of the file schpw.c of the component Kerberos. 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:

schpw.c in the kpasswd service in kadmind in MIT Kerberos 5 (aka krb5) before 1.11.3 does not properly validate UDP packets before sending responses, which allows remote attackers to cause a denial of service (CPU and bandwidth consumption) via a forged packet that triggers a communication loop, as demonstrated by krb_pingpong.nasl, a related issue to CVE-1999-0103.

The weakness was released 05/29/2013 (Website). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2002-2443 since 05/10/2013. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 75067 (openSUSE Security Update : krb5 (openSUSE-SU-2013:1119-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196311 (Ubuntu Security Notification for Krb5 Vulnerabilities (USN-2810-1)).

Upgrading to version 5-1.11.2 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (84195) and Tenable (75067). Entries connected to this vulnerability are available at 7828, 7884 and 79201.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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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: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 75067
Nessus Name: openSUSE Security Update : krb5 (openSUSE-SU-2013:1119-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 892701
OpenVAS Name: Debian Security Advisory DSA 2701-1 (krb5 - denial of service
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kerberos 5-1.11.2
Patch: github.com
McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍

Timelineinfo

02/22/2013 🔍
05/10/2013 +77 days 🔍
05/13/2013 +3 days 🔍
05/27/2013 +14 days 🔍
05/29/2013 +2 days 🔍
05/29/2013 +0 days 🔍
06/13/2014 +380 days 🔍
03/24/2015 +284 days 🔍
01/03/2022 +2477 days 🔍

Sourcesinfo

Vendor: mit.edu

Advisory: USN-2810-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2002-2443 (🔍)
OVAL: 🔍

X-Force: 84195
Vulnerability Center: 39709 - MIT Kerberos 5 1.8.3 and 1.10.1 \x27kadmind\x27 Allows Remote DoS Vulnerability via Crafted UDP Packets, High
SecurityFocus: 58144 - MIT Kerberos 5 CVE-2013-1415 NULL Pointer Dereference Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 03/24/2015 15:54
Updated: 01/03/2022 07:37
Changes: 03/24/2015 15:54 (72), 04/30/2017 12:44 (7), 01/03/2022 07:23 (4), 01/03/2022 07:30 (1), 01/03/2022 07:37 (1)
Complete: 🔍

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