sssd up to 1.16.2 Unix Pipe handler Message information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability has been found in sssd up to 1.16.2 and classified as critical. The affected element is an unknown function of the component Unix Pipe handler. This manipulation as part of Message causes information disclosure. This vulnerability appears as CVE-2018-10852. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in sssd up to 1.16.2 and classified as critical. Affected by this vulnerability is an unknown part of the component Unix Pipe handler. The manipulation as part of a Message leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The UNIX pipe which sudo uses to contact SSSD and read the available sudo rules from SSSD has too wide permissions, which means that anyone who can send a message using the same raw protocol that sudo and SSSD use can read the sudo rules available for any user. This affects versions of SSSD before 1.16.3.

The bug was discovered 06/25/2018. The weakness was presented 06/26/2018 with Red Hat as confirmed bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is known as CVE-2018-10852 since 05/09/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 111111 (Debian DLA-1429-1 : sssd security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 172144 (SUSE Enterprise Linux Security Update for sssd (SUSE-SU-2019:0556-1)).

Upgrading to version 1.16.3 eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (111111) and SecurityFocus (BID 104547†). See VDB-129786 for similar entry. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 111111
Nessus Name: Debian DLA-1429-1 : sssd security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: sssd 1.16.3

Timelineinfo

05/09/2018 🔍
06/25/2018 +47 days 🔍
06/26/2018 +0 days 🔍
06/26/2018 +0 days 🔍
06/26/2018 +0 days 🔍
06/27/2018 +1 days 🔍
07/16/2018 +19 days 🔍
07/17/2018 +1 days 🔍
03/29/2023 +1716 days 🔍

Sourcesinfo

Advisory: RHSA-2018:3158
Organization: Red Hat
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-10852 (🔍)
GCVE (CVE): GCVE-0-2018-10852
GCVE (VulDB): GCVE-100-119983
SecurityFocus: 104547 - SSSD CVE-2018-10852 Local Information Disclosure Vulnerability

See also: 🔍

Entryinfo

Created: 06/27/2018 10:13
Updated: 03/29/2023 08:23
Changes: 06/27/2018 10:13 (76), 02/22/2020 15:26 (6), 03/29/2023 08:23 (4)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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