CVE-2014-8886 Information

Description

AVM FRITZ!OS before 6.30 extracts the contents of firmware updates before verifying their cryptographic signature which allows remote attackers to create symlinks or overwrite critical files and consequently execute arbitrary code via a crafted firmware image.

CVSS Vector

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

Reference

http://packetstormsecurity.com/files/135161/AVM-FRITZ-Box-Arbitrary-Code-Execution-Via-Firmware-Images.html http://seclists.org/fulldisclosure/2016/Jan/12 http://www.securityfocus.com/archive/1/537246/100/0/threaded https://avm.de/service/sicherheitsinfos-zu-updates/ https://www.redteam-pentesting.de/advisories/rt-sa-2014-014

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.1