Google Android up to 4.4.4 ObjectInputStream access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Google Android. The affected element is the function ObjectInputStream. The manipulation results in access control. This vulnerability is known as CVE-2014-7911. Furthermore, an exploit is available. This vulnerability has historical importance owing to its background and reception. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Google Android (Smartphone Operating System). Affected is the function ObjectInputStream. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 11/19/2014 by Jann Horn as confirmed mailinglist post (Full-Disclosure). The advisory is available at seclists.org. This vulnerability is traded as CVE-2014-7911 since 10/06/2014. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 02/25/2022). It is expected to see the exploit prices for this product increasing in the near future.This vulnerability is assigned to T1068 by the MITRE ATT&CK project. This vulnerability has a historic impact due to its background and reception. The advisory points out:

This means that when ObjectInputStream is used on untrusted inputs, an attacker can cause an instance of any class with a non-private parameterless constructor to be created. All fields of that instance can be set to arbitrary values. The malicious object will then typically either be ignored or cast to a type to which it doesn't fit, implying that no methods will be called on it and no data from it will be used. However, when it is collected by the GC, the GC will call the object's finalize method.

A public exploit has been developed by Jann Horn in Java and been published immediately after the advisory. The exploit is shared for download at seclists.org. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 150 days. During that time the estimated underground price was around $25k-$100k.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at android.googlesource.com.

The vulnerability is also documented in the databases at X-Force (98801), SecurityFocus (BID 71176†) and Vulnerability Center (SBV-47748†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Jann Horn
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Patch: android.googlesource.com

Timelineinfo

06/22/2014 🔍
10/06/2014 +106 days 🔍
11/19/2014 +44 days 🔍
11/19/2014 +0 days 🔍
11/19/2014 +0 days 🔍
11/19/2014 +0 days 🔍
11/20/2014 +1 days 🔍
12/15/2014 +25 days 🔍
12/22/2014 +7 days 🔍
02/25/2022 +2622 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: seclists.org
Researcher: Jann Horn
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-7911 (🔍)
GCVE (CVE): GCVE-0-2014-7911
GCVE (VulDB): GCVE-100-68250
X-Force: 98801 - Google Android ObjectInputStream privilege escalation, Medium Risk
SecurityFocus: 71176 - Google Android CVE-2014-7911 Local Privilege Escalation Vulnerability
Vulnerability Center: 47748 - Google Android Before 5.0.0 Local Host Privilege in the java.io.ObjectInputStream Implementation, High

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

Entryinfo

Created: 11/20/2014 10:37
Updated: 02/25/2022 06:38
Changes: 11/20/2014 10:37 (77), 06/16/2017 04:24 (1), 02/25/2022 06:38 (3)
Complete: 🔍
Cache ID: 216:CD8:103

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