Executive Summary

Summary
TitleD-Bus: Authentication bypass
Informations
NameGLSA-201909-08First vendor Publication2019-09-08
VendorGentooLast vendor Modification2019-09-08
Severity (Vendor) N/ARevisionN/A

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:P/I:P/A:N)
Cvss Base Score3.6Attack RangeLocal
Cvss Impact Score4.9Attack ComplexityLow
Cvss Expoit Score3.9AuthenticationNone Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

An authentication bypass was discovered in D-Bus.

Background

D-Bus is a message bus system which processes can use to talk to each other.

Description

It was discovered that a local attacker could manipulate symbolic links in their own home directory to bypass authentication and connect to a DBusServer with elevated privileges.

Impact

A local attacker can bypass authentication mechanisms and elevate privileges.

Workaround

There is no known workaround at this time.

Resolution

All D-Bus users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-apps/dbus-1.12.16"

References

[ 1 ] CVE-2019-12749 : https://nvd.nist.gov/vuln/detail/CVE-2019-12749

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

https://security.gentoo.org/glsa/201909-08

Original Source

Url : http://security.gentoo.org/glsa/glsa-201909-08.xml

CWE : Common Weakness Enumeration

%idName
100 %CWE-287Improper Authentication

CPE : Common Platform Enumeration

TypeDescriptionCount
Application63
Os4

Alert History

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0
DateInformations
2019-09-08 21:18:55
  • First insertion