Multiple vulnerabilities in D-Bus

1) Security restrictions bypass

EUVDB-ID: #VU6932

Risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

Multiple vulnerabilities in D-Bus might allow an attacker to overwrite files with a fixed filename in arbitrary directories or conduct a symlink attack.

An attacker could possibly overwrite arbitrary files named “once” with content not controlled by the attacker.

A local attacker could perform a symlink attack against D-Bus’ test suite.

Mitigation

Update to version 1.10.18.

Vulnerable software versions

D-Bus: 1.4.10 - 1.11.10

External links

http://www.openwall.com/lists/oss-security/2017/02/16/4

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.