openSUSE Linux Enterprise 15 PAM 1.3.0 Variable data processing

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

A vulnerability was found in openSUSE Linux Enterprise 15 (Operating System). It has been rated as critical. This issue affects an unknown code block of the component PAM 1.3.0. The manipulation as part of a Variable leads to a data processing vulnerability. Using CWE to declare the problem leads to CWE-19. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A incorrect variable in a SUSE specific patch for pam_access rule matching in PAM 1.3.0 in openSUSE Leap 15.0 and SUSE Linux Enterprise 15 could lead to pam_access rules not being applied (fail open).

The bug was discovered 11/26/2018. The weakness was presented 11/27/2018 as Bug 1115640 as not defined bug report (Bugzilla). It is possible to read the advisory at bugzilla.suse.com. The identification of this vulnerability is CVE-2018-17953 since 10/03/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

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 119544 (openSUSE Security Update : pam (openSUSE-2018-1511)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171934 (OpenSUSE Security Update for pam (openSUSE-SU-2018:4043-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (119544).

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 7.0

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (SUSE): 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Data processing
CWE: CWE-19
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 119544
Nessus Name: openSUSE Security Update : pam (openSUSE-2018-1511)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Timelineinfo

10/03/2018 🔍
11/26/2018 +54 days 🔍
11/27/2018 +1 days 🔍
11/27/2018 +0 days 🔍
11/28/2018 +1 days 🔍
12/07/2018 +9 days 🔍
12/10/2018 +3 days 🔍
06/11/2023 +1644 days 🔍

Sourcesinfo

Advisory: Bug 1115640
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-17953 (🔍)

Entryinfo

Created: 11/28/2018 10:48
Updated: 06/11/2023 16:32
Changes: 11/28/2018 10:48 (74), 04/15/2020 16:28 (4), 06/11/2023 16:32 (14)
Complete: 🔍

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