Vulnerability CVE-2014-8886


Published: 2016-01-08

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.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
AVM FRITZ!Box: Arbitrary Code Execution Via Firmware Images
RedTeam
08.01.2016

Type:

CWE-310

(Cryptographic Issues)

Vendor: AVM
Product: Fritz! os 
Version: 6.23;

CVSS2 => (AV:N/AC:M/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
9.3/10
10/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete

 References:
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

Related CVE
CVE-2014-8872
Improper Verification of Cryptographic Signature in AVM FRITZ!Box 6810 LTE after firmware 5.22, FRITZ!Box 6840 LTE after firmware 5.23, and other models with firmware 5.50.
CVE-2015-7242
Cross-site scripting (XSS) vulnerability in the Push-Service-Mails feature in AVM FRITZ!OS before 6.30 allows remote attackers to inject arbitrary web script or HTML via the display name in the FROM field of an SIP INVITE message.
CVE-2014-9727
AVM Fritz!Box allows remote attackers to execute arbitrary commands via shell metacharacters in the var:lang parameter to cgi-bin/webcm.
CVE-2007-0431
AVM Fritz!Box 7050, and possibly other product models, allows remote attackers to cause a denial of service (VoIP application crash) via a zero-length UDP packet to the SIP port (port 5060).
CVE-2000-0261
The AVM KEN! web server allows remote attackers to read arbitrary files via a .. (dot dot) attack.
CVE-2000-0262
The AVM KEN! ISDN Proxy server allows remote attackers to cause a denial of service via a malformed request.

Copyright 2019, cxsecurity.com

 

Back to Top