SSSD up to 1.5.6.1 Security Service krb5_save_ccname_done improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability was found in SSSD up to 1.5.6.1. It has been rated as problematic. This vulnerability affects the function krb5_save_ccname_done of the component Security Service. The manipulation leads to improper authentication. This vulnerability is listed as CVE-2011-1758. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in SSSD up to 1.5.6.1 and classified as problematic. This issue affects the function krb5_save_ccname_done of the component Security Service. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The krb5_save_ccname_done function in providers/krb5/krb5_auth.c in System Security Services Daemon (SSSD) 1.5.x before 1.5.7, when automatic ticket renewal and offline authentication are configured, uses a pathname string as a password, which allows local users to bypass Kerberos authentication by listing the /tmp directory to obtain the pathname.

The weakness was presented 05/26/2011 (Website). The advisory is shared at fedorahosted.org. The identification of this vulnerability is CVE-2011-1758. The exploitation is known to be difficult. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 53816 (Fedora 14 : sssd-1.5.7-1.fc14 (2011-5815)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks.

Upgrading to version 1.5.6.1 eliminates this vulnerability. Applying the patch fffdae81651b460f3d2c119c56d5caa09b4de42a is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at X-Force (67229), Tenable (53816), SecurityFocus (BID 47658†) and Vulnerability Center (SBV-31482†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.7

VulDB Base Score: 4.9
VulDB Temp Score: 4.7
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: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 53816
Nessus Name: Fedora 14 : sssd-1.5.7-1.fc14 (2011-5815)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 863075
OpenVAS Name: Fedora Update for sssd FEDORA-2011-5815
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: SSSD 1.5.6.1
Patch: fffdae81651b460f3d2c119c56d5caa09b4de42a

Timelineinfo

04/19/2011 🔍
04/29/2011 +10 days 🔍
04/29/2011 +0 days 🔍
05/06/2011 +7 days 🔍
05/17/2011 +11 days 🔍
05/26/2011 +9 days 🔍
05/26/2011 +0 days 🔍
03/23/2015 +1397 days 🔍
11/07/2021 +2421 days 🔍

Sourcesinfo

Advisory: 856
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-1758 (🔍)
GCVE (CVE): GCVE-0-2011-1758
GCVE (VulDB): GCVE-100-57533
X-Force: 67229
SecurityFocus: 47658 - SSSD Kerberos Ticket Renewal Cached Password Security Bypass Vulnerability
Vulnerability Center: 31482 - SSSD 1.5.6 Predictable Cache Filename Allows Local Authentication Bypass, Medium

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/07/2021 21:24
Changes: 03/23/2015 16:50 (60), 03/22/2017 14:17 (8), 11/07/2021 21:12 (7), 11/07/2021 21:24 (1)
Complete: 🔍
Cache ID: 216::103

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