Google Android up to 5.1.0 User Interface keyguard_password_view.xml access control

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.8$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Google Android up to 5.1.0. Affected by this vulnerability is an unknown functionality of the file packages/Keyguard/res/layout/keyguard_password_view.xml of the component User Interface. Performing a manipulation results in access control. This vulnerability is reported as CVE-2015-3860. Moreover, an exploit is present. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Google Android up to 5.1.0 (Smartphone Operating System). This affects an unknown functionality of the file packages/Keyguard/res/layout/keyguard_password_view.xml of the component User Interface. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

packages/Keyguard/res/layout/keyguard_password_view.xml in Lockscreen in Android 5.x before 5.1.1 LMY48M does not restrict the number of characters in the passwordEntry input field, which allows physically proximate attackers to bypass intended access restrictions via a long password that triggers a SystemUI crash, aka internal bug 22214934.

The weakness was disclosed 10/01/2015 as 22214934 (Website). The advisory is shared at groups.google.com. This vulnerability is uniquely identified as CVE-2015-3860 since 05/12/2015. An attack has to be approached locally. No form of authentication is needed for exploitation. Technical details and a public exploit are known. MITRE ATT&CK project uses the attack technique T1068 for this issue.

It is declared as functional. We expect the 0-day to have been worth approximately $25k-$100k. By approaching the search of inurl:packages/Keyguard/res/layout/keyguard_password_view.xml it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 5.1.1 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The entries VDB-78161, VDB-78174, VDB-78175 and VDB-78176 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 7.8

VulDB Base Score: 8.4
VulDB Temp Score: 7.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Functional
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Android 5.1.1

Timelineinfo

04/21/2015 🔍
05/12/2015 +21 days 🔍
09/30/2015 +141 days 🔍
10/01/2015 +1 days 🔍
10/01/2015 +0 days 🔍
01/12/2018 +834 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: 22214934
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-3860 (🔍)
GCVE (CVE): GCVE-0-2015-3860
GCVE (VulDB): GCVE-100-78177
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 10/01/2015 15:11
Updated: 01/12/2018 09:16
Changes: 10/01/2015 15:11 (58), 01/12/2018 09:16 (2)
Complete: 🔍
Cache ID: 216::103

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

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to know what is going to be exploited?

We predict KEV entries!