AVM FRITZ!OS up to 6.29 Firmware Update cryptographic issue

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability was found in AVM FRITZ!OS up to 6.29. It has been classified as critical. Affected by this vulnerability is an unknown functionality of the component Firmware Update Handler. This manipulation causes cryptographic issue. This vulnerability appears as CVE-2014-8886. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in AVM FRITZ!OS up to 6.29 (Router Operating System) and classified as critical. Affected by this vulnerability is an unknown code block of the component Firmware Update Handler. The manipulation with an unknown input leads to a cryptographic issue vulnerability. The CWE definition for the vulnerability is CWE-310. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was presented 01/08/2016 (Website). The advisory is shared at redteam-pentesting.de. This vulnerability is known as CVE-2014-8886 since 11/14/2014. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1600 for this issue.

Upgrading to version 6.30 eliminates this vulnerability.

See VDB-80186 for similar entry. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cryptographic issue
CWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: FRITZ!OS 6.30

Timelineinfo

11/14/2014 🔍
01/08/2016 +420 days 🔍
01/08/2016 +0 days 🔍
01/10/2016 +2 days 🔍
07/02/2022 +2365 days 🔍

Sourcesinfo

Advisory: 135161
Status: Not defined
Confirmation: 🔍

CVE: CVE-2014-8886 (🔍)
GCVE (CVE): GCVE-0-2014-8886
GCVE (VulDB): GCVE-100-80113
See also: 🔍

Entryinfo

Created: 01/10/2016 20:09
Updated: 07/02/2022 14:49
Changes: 01/10/2016 20:09 (62), 06/06/2018 10:56 (2), 07/02/2022 14:49 (4)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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