Google Android up to 4.3 APK Signature Validator security check

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Google Android up to 4.3. This impacts an unknown function of the component APK Signature Validator. Such manipulation leads to security check. This vulnerability is traded as CVE-2013-6792. Furthermore, there is an exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Google Android up to 4.3 (Smartphone Operating System). Affected by this issue is an unknown part of the component APK Signature Validator. The manipulation with an unknown input leads to a security check vulnerability. Using CWE to declare the problem leads to CWE-358. The product does not implement or incorrectly implements one or more security-relevant checks as specified by the design of a standardized algorithm, protocol, or technique. Impacted is confidentiality, and integrity.

The weakness was shared 11/08/2013 by Zhang YunHai with NSFOCUS Security Team as SA2013-02 as not defined advisory (Website). The advisory is shared for download at en.nsfocus.com. This vulnerability is handled as CVE-2013-6792 since 11/13/2013. The attack needs to be done within the local network. No form of authentication is required for exploitation. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1211. The advisory points out:

The vulnerability can allow attackers to manipulate the APK codes, change the legal application into a Trojan program without destroying the original signature of application.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k.

Upgrading to version 4.4 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (90170), Exploit-DB (38821), SecurityFocus (BID 64529†), OSVDB (100935†) and Vulnerability Center (SBV-43099†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 5.4
VulDB Temp Score: 4.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
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: Security check
CWE: CWE-358
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Android 4.4

Timelineinfo

11/01/2013 🔍
11/08/2013 +7 days 🔍
11/08/2013 +0 days 🔍
11/08/2013 +0 days 🔍
11/13/2013 +5 days 🔍
12/16/2013 +33 days 🔍
01/29/2014 +44 days 🔍
06/12/2024 +3787 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: SA2013-02
Researcher: Zhang YunHai
Organization: NSFOCUS Security Team
Status: Not defined

CVE: CVE-2013-6792 (🔍)
GCVE (CVE): GCVE-0-2013-6792
GCVE (VulDB): GCVE-100-11504
X-Force: 90170
SecurityFocus: 64529 - Google Android APK Signature Security Bypass Vulnerability
OSVDB: 100935
Vulnerability Center: 43099 - Google Android Before 4.4 Remote Security Bypass Vulnerability due to an Error in GetInputStream Function, Medium

scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 12/16/2013 10:34
Updated: 06/12/2024 07:45
Changes: 12/16/2013 10:34 (58), 05/20/2017 10:10 (2), 06/04/2021 10:30 (2), 06/04/2021 10:35 (18), 06/12/2024 07:45 (23)
Complete: 🔍
Committer: olku
Cache ID: 216:485:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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