MIT Kerberos 5-1.13 Named Ticket Policy krb5_ldap_get_password_policy_from_dn null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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3.8$0-$5k0.00

Summaryinfo

A vulnerability was found in MIT Kerberos 5-1.13 and classified as problematic. Impacted is the function krb5_ldap_get_password_policy_from_dn of the component Named Ticket Policy Handler. The manipulation results in null pointer dereference. This vulnerability is identified as CVE-2014-5353. There is not any exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability classified as problematic has been found in MIT Kerberos 5-1.13 (Network Authentication Software). Affected is the function krb5_ldap_get_password_policy_from_dn of the component Named Ticket Policy Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. SecurityTracker mentions: "Systems with kadmind configured to use LDAP for the KDC database are affected."

The weakness was released 12/16/2014 by Patrik Kis (Website). The advisory is shared for download at web.mit.edu. This vulnerability is traded as CVE-2014-5353 since 08/19/2014. It is possible to launch the attack remotely. A authentication is needed for exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 81965 (openSUSE Security Update : krb5 (openSUSE-2015-246)), 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 196000 (Ubuntu Security Notification for Krb5 Vulnerabilities (USN-2498-1)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the databases at X-Force (99346), Tenable (81965), SecurityFocus (BID 71679†), SecurityTracker (ID 1031376†) and Vulnerability Center (SBV-48387†). Further details are available at bugzilla.redhat.com. Entries connected to this vulnerability are available at VDB-67788, VDB-68437 and VDB-69040. 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: 4.3
VulDB Meta Temp Score: 3.8

VulDB Base Score: 4.3
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
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Nessus ID: 81965
Nessus Name: openSUSE Security Update : krb5 (openSUSE-2015-246)
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: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

08/19/2014 🔍
12/06/2014 +109 days 🔍
12/06/2014 +0 days 🔍
12/16/2014 +10 days 🔍
12/16/2014 +0 days 🔍
12/16/2014 +0 days 🔍
12/16/2014 +0 days 🔍
02/02/2015 +48 days 🔍
03/20/2015 +46 days 🔍
03/01/2022 +2538 days 🔍

Sourcesinfo

Vendor: mit.edu

Advisory: USN-2498-1
Researcher: Patrik Kis
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-5353 (🔍)
GCVE (CVE): GCVE-0-2014-5353
GCVE (VulDB): GCVE-100-68436
X-Force: 99346 - MIT krb5 kadmind denial of service, Low Risk
SecurityFocus: 71679 - MIT Kerberos 5 CVE-2014-5353 NULL Pointer Dereference Remote Denial of Service Vulnerability
SecurityTracker: 1031376 - MIT Kerberos Null Pointer Dereference Bugs Let Remote Authenticated Users Deny Service
Vulnerability Center: 48387 - MIT Kerberos 5 before 1.13.1 Remote DoS via a Successful LDAP Query with No Results, Low

Misc.: 🔍
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Entryinfo

Created: 12/16/2014 15:53
Updated: 03/01/2022 11:51
Changes: 12/16/2014 15:53 (77), 06/19/2017 08:15 (8), 03/01/2022 11:36 (4), 03/01/2022 11:44 (1), 03/01/2022 11:51 (1)
Complete: 🔍
Cache ID: 216::103

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