MIT Kerberos up to 5-1.13 kadmind gss_process_context_token use after free

CVSS Meta Temp Score
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CTI Interest Score
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8.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in MIT Kerberos up to 5-1.13 and classified as critical. Affected by this issue is the function gss_process_context_token of the component kadmind. This manipulation causes use after free. This vulnerability is tracked as CVE-2014-5352. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in MIT Kerberos up to 5-1.13 (Network Authentication Software). It has been declared as critical. Affected by this vulnerability is the function gss_process_context_token of the component kadmind. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 02/03/2015 by Nico Williams as MITKRB5-SA-2015-001 as confirmed advisory (Website). The advisory is shared at web.mit.edu. This vulnerability is known as CVE-2014-5352 since 08/19/2014. The exploitation appears to be easy. The attack can be launched remotely. A single authentication is necessary for exploitation. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 83269 (Amazon Linux AMI : krb5 (ALAS-2015-518)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350184 (Amazon Linux Security Advisory for krb5: ALAS-2015-518).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (100842), Tenable (83269), SecurityFocus (BID 72495†), SecurityTracker (ID 1031691†) and Vulnerability Center (SBV-48908†). The entries VDB-69038, VDB-69040, VDB-69039 and VDB-69192 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.9
VulDB Meta Temp Score: 8.6

VulDB Base Score: 9.9
VulDB Temp Score: 8.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 83269
Nessus Name: Amazon Linux AMI : krb5 (ALAS-2015-518)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 14611
OpenVAS Name: Amazon Linux Local Check: ALAS-2015-518
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

08/19/2014 🔍
02/03/2015 +168 days 🔍
02/03/2015 +0 days 🔍
02/04/2015 +1 days 🔍
02/05/2015 +1 days 🔍
02/19/2015 +14 days 🔍
02/19/2015 +0 days 🔍
03/09/2015 +18 days 🔍
05/07/2015 +59 days 🔍
03/08/2022 +2497 days 🔍

Sourcesinfo

Vendor: mit.edu

Advisory: MITKRB5-SA-2015-001
Researcher: Nico Williams
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-5352 (🔍)
GCVE (CVE): GCVE-0-2014-5352
GCVE (VulDB): GCVE-100-69037

OVAL: 🔍

X-Force: 100842 - MIT krb5 gss_process_context_token() code execution, High Risk
SecurityFocus: 72495 - MIT krb5 kadmind CVE-2014-5352 Double Free Remote Code Execution Vulnerability
SecurityTracker: 1031691 - MIT Kerberos Multiple Flaws in kadmind Let Remote Users Obtain Potentially Sensitive Information and Remote Authenticted Users Execute Arbitrary Code
Vulnerability Center: 48908 - MIT Kerberos 5 Remote DoS or Code Execution via Crafted \x27GSSAPI\x27 Traffic, High

See also: 🔍

Entryinfo

Created: 02/05/2015 16:44
Updated: 03/08/2022 14:10
Changes: 02/05/2015 16:44 (80), 06/22/2017 10:29 (6), 03/08/2022 14:05 (4), 03/08/2022 14:10 (1)
Complete: 🔍
Cache ID: 216:3BB:103

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