Pacemaker up to 2.0.0 Client-Server Authentication access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Pacemaker up to 2.0.0. It has been classified as critical. This affects an unknown part of the component Client-Server Authentication. The manipulation leads to access control. This vulnerability is uniquely identified as CVE-2018-16877. Local access is required to approach this attack. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Pacemaker up to 2.0.0 and classified as critical. This issue affects an unknown code block of the component Client-Server Authentication. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A flaw was found in the way pacemaker's client-server authentication was implemented in versions up to and including 2.0.0. A local attacker could use this flaw, and combine it with other IPC weaknesses, to achieve local privilege escalation.

The bug was discovered 04/17/2019. The weakness was disclosed 04/18/2019 with Red Hat as confirmed bug report (Bugzilla). The advisory is shared at bugzilla.redhat.com. The identification of this vulnerability is CVE-2018-16877 since 09/11/2018. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

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 commercial vulnerability scanner Qualys is able to test this issue with plugin 197435 (Ubuntu Security Notification for Pacemaker Vulnerabilities (USN-3952-1)).

Upgrading to version 2.0.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 108036†). The entries VDB-133818 and VDB-133848 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 8.8
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
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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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Pacemaker 2.0.1
Patch: github.com

Timelineinfo

09/11/2018 🔍
04/17/2019 +218 days 🔍
04/17/2019 +0 days 🔍
04/18/2019 +1 days 🔍
04/19/2019 +1 days 🔍
09/04/2023 +1599 days 🔍

Sourcesinfo

Advisory: RHSA-2019:1278
Organization: Red Hat
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-16877 (🔍)
GCVE (CVE): GCVE-0-2018-16877
GCVE (VulDB): GCVE-100-133817
SecurityFocus: 108036 - Pacemaker CVE-2019-3885 Information Disclosure Vulnerability

See also: 🔍

Entryinfo

Created: 04/19/2019 06:52
Updated: 09/04/2023 16:01
Changes: 04/19/2019 06:52 (62), 05/30/2020 18:36 (5), 09/04/2023 15:55 (5), 09/04/2023 16:01 (12)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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