Apple iOS up to 5.01 WebKit memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.9$5k-$25k0.00

A vulnerability was found in Apple iOS up to 5.01 (Smartphone Operating System). It has been rated as critical. This issue affects an unknown functionality of the component WebKit. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

WebKit, as used in Apple iOS before 5.1 and iTunes before 10.6, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site, a different vulnerability than other WebKit CVEs listed in APPLE-SA-2012-03-07-1 and APPLE-SA-2012-03-07-2.

The weakness was presented 03/07/2012 by Abhishek Arya (Inferno) with Google Chrome Security Team as HT5190 as confirmed knowledge base article (Website). The advisory is shared at support.apple.com. The public release was coordinated in cooperation with Apple. The identification of this vulnerability is CVE-2011-2873 since 07/20/2011. The attack may be initiated remotely. The successful exploitation needs a simple authentication. Technical details are unknown but a private exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/21/2021). It is expected to see the exploit prices for this product increasing in the near future.

A private exploit has been developed by Abhishek Arya (Inferno). It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 58319 (Apple iTunes < 10.6 Multiple Vulnerabilities (credentialed check)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows. The commercial vulnerability scanner Qualys is able to test this issue with plugin 119974 (Apple iTunes Prior to 10.6 Multiple Vulnerabilities (APPLE-SA-2012-03-07-1)).

Upgrading to version 5.1 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at trac.webkit.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (73802) and Tenable (58319). See 4460, 4459, 4574 and 4726 for similar entries.

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CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 9.9
VulDB Meta Temp Score: 8.9

VulDB Base Score: 9.9
VulDB Temp Score: 8.9
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CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Private
Status: Proof-of-Concept
Author: Abhishek Arya (Inferno)

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Nessus ID: 58319
Nessus Name: Apple iTunes < 10.6 Multiple Vulnerabilities (credentialed check)
Nessus File: 🔍
Nessus Risk: 🔍
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OpenVAS ID: 802824
OpenVAS Name: Apple iTunes Multiple Vulnerabilities - Mar12 (Win)
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Upgrade: iOS 5.1
Patch: trac.webkit.org

Timelineinfo

07/20/2011 🔍
03/07/2012 +231 days 🔍
03/07/2012 +0 days 🔍
03/07/2012 +0 days 🔍
03/08/2012 +1 days 🔍
03/08/2012 +0 days 🔍
03/08/2012 +0 days 🔍
03/09/2012 +1 days 🔍
03/09/2012 +0 days 🔍
03/10/2012 +1 days 🔍
12/25/2012 +290 days 🔍
03/21/2021 +3008 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT5190
Researcher: Abhishek Arya (Inferno)
Organization: Google Chrome Security Team
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2011-2873 (🔍)
OVAL: 🔍

X-Force: 73802
SecurityTracker: 1026774 - Apple iOS Bugs Let Remote Users Execute Arbitrary Code, Conduct Cross-Site Scripting Attacks, and Obtain Potentially Sensitive Information
Vulnerability Center: 37795 - Apple iTunes <10.6 and iOS <5.1 Remote Code Execution \\ DoS via a Crafted Web Site - CVE-2011-2873, Medium
SecurityFocus: 52365 - WebKit Multiple Unspecified Memory Corruption Vulnerabilities
Secunia: 48274 - Apple iTunes Multiple WebKit Vulnerabilities, Less Critical
OSVDB: 79912

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

Entryinfo

Created: 03/10/2012 09:26
Updated: 03/21/2021 10:33
Changes: 03/10/2012 09:26 (91), 04/22/2017 18:35 (5), 03/21/2021 10:33 (3)
Complete: 🔍

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