MIT Kerberos 4.0/5 1.0/5 1.1.1 krb_rd_req memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in MIT Kerberos 4.0/5 1.0/5 1.1.1. This affects the function krb_rd_req. Executing a manipulation can lead to memory corruption. This vulnerability is handled as CVE-2000-0389. Additionally, an exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in MIT Kerberos 4.0/5 1.0/5 1.1.1 (Network Authentication Software) and classified as critical. This vulnerability affects the function krb_rd_req. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Buffer overflow in krb_rd_req function in Kerberos 4 and 5 allows remote attackers to gain root privileges.

The weakness was released 05/16/2000 as confirmed advisory (CERT.org). The advisory is shared for download at cert.org. This vulnerability was named CVE-2000-0389. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known.

A public exploit has been developed in ANSI C. It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 10411 (Kerberos klogind Remote Overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gain a shell remotely.

Upgrading to version 4.1.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (4519), Exploit-DB (19924), Tenable (10411), SecurityFocus (BID 1220†) and Vulnerability Center (SBV-26249†). Entries connected to this vulnerability are available at VDB-15557, VDB-15558, VDB-15559 and VDB-16445. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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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: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 10411
Nessus Name: Kerberos klogind Remote Overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kerberos 4.1.0

Timelineinfo

05/16/2000 🔍
05/16/2000 +0 days 🔍
05/16/2000 +0 days 🔍
05/16/2000 +0 days 🔍
05/18/2000 +2 days 🔍
07/01/2010 +3696 days 🔍
06/24/2014 +1454 days 🔍
07/04/2024 +3663 days 🔍

Sourcesinfo

Vendor: mit.edu

Advisory: cert.org
Status: Confirmed

CVE: CVE-2000-0389 (🔍)
GCVE (CVE): GCVE-0-2000-0389
GCVE (VulDB): GCVE-100-15556
X-Force: 4519
SecurityFocus: 1220 - Multiple Vendor Kerberos 5/Kerberos 4 Compatibility krb_rd_req() Buffer Overflow Vulnerability
Vulnerability Center: 26249 - MIT Kerberos 4 and 5, RedHat Linux, Cygnus KerbNet and Cygnus CNS Remote Root Access Vulnerability, Critical

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

Entryinfo

Created: 06/24/2014 16:37
Updated: 07/04/2024 10:03
Changes: 06/24/2014 16:37 (59), 02/28/2017 11:30 (11), 06/25/2021 07:18 (2), 07/04/2024 10:03 (16)
Complete: 🔍
Cache ID: 216:5E0:103

Once again VulDB remains the best source for vulnerability data.

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