CVE-2017-2625

medium

Description

It was discovered that libXdmcp before 1.1.2 including used weak entropy to generate session keys. On a multi-user system using xdmcp, a local attacker could potentially use information available from the process list to brute force the key, allowing them to hijack other users' sessions.

References

http://www.securityfocus.com/bid/96480

http://www.securitytracker.com/id/1037919

https://access.redhat.com/errata/RHSA-2017:1865

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2625

https://cgit.freedesktop.org/xorg/lib/libXdmcp/commit/?id=0554324ec6bbc2071f5d1f8ad211a1643e29eb1f

https://security.gentoo.org/glsa/201704-03

https://www.x41-dsec.de/lab/advisories/x41-2017-001-xorg/

Details

Source: MITRE

Published: 2018-07-27

Updated: 2019-10-09

Type: CWE-320

Risk Information

CVSS v2

Base Score: 2.1

Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM