Apple Safari up to 5.0.5 input validation

CVSS Meta Temp Score
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CTI Interest Score
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8.7$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Apple Safari up to 5.0.5. Affected by this issue is some unknown functionality. This manipulation causes input validation. This vulnerability is handled as CVE-2011-1774. Additionally, an exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Apple Safari up to 5.0.5 (Web Browser) and classified as critical. Affected by this vulnerability is some unknown functionality. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect integrity, and availability. The summary by CVE is:

WebKit in Apple Safari before 5.0.6 has improper libxslt security settings, which allows remote attackers to create arbitrary files, and consequently execute arbitrary code, via a crafted web site. NOTE: this may overlap CVE-2011-1425.

The weakness was released 07/21/2011 by Will Dormann with CERT/CC (Website). The advisory is shared at lists.apple.com. This vulnerability is known as CVE-2011-1774. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available.

A public exploit has been developed in Ruby. It is possible to download the exploit at securityfocus.com. It is declared as highly functional. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 55728 (SuSE 11.1 Security Update : libwebkit (SAT Patch Number 4917)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 119637 (Apple iTunes Prior to 10.5 Multiple Vulnerabilities (APPLE-SA-2011-10-11-1)).

Upgrading to version 3.1.0b eliminates this vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 12222.

The vulnerability is also documented in the databases at Exploit-DB (17993), Tenable (55728), SecurityFocus (BID 48840†) and Vulnerability Center (SBV-32409†). Entries connected to this vulnerability are available at VDB-56804, VDB-56803, VDB-56790 and VDB-56788. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.1
VulDB Meta Temp Score: 8.7

VulDB Base Score: 9.1
VulDB Temp Score: 8.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 55728
Nessus Name: SuSE 11.1 Security Update : libwebkit (SAT Patch Number 4917)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 802193
OpenVAS Name: Apple iTunes Multiple Vulnerabilities - Oct 11
OpenVAS File: 🔍
OpenVAS Family: 🔍

Saint ID: exploit_info/safari_webkit_libxslt_file_create
Saint Name: Apple Safari libxslt File Create

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: safari_xslt_output.rb
MetaSploit Name: Apple Safari Webkit libxslt Arbitrary File Creation
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Safari 3.1.0b
TippingPoint: 🔍
ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

04/19/2011 🔍
07/20/2011 +92 days 🔍
07/21/2011 +1 days 🔍
07/21/2011 +0 days 🔍
07/21/2011 +0 days 🔍
07/25/2011 +4 days 🔍
07/29/2011 +4 days 🔍
03/23/2015 +1333 days 🔍
05/24/2025 +3715 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: lists.apple.com
Researcher: Will Dormann
Organization: CERT/CC
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-1774 (🔍)
GCVE (CVE): GCVE-0-2011-1774
GCVE (VulDB): GCVE-100-58081
SecurityFocus: 48840 - WebKit 'libxslt' Remote Code Execution Vulnerability
Vulnerability Center: 32409 - Apple Safari before 5.0.6 WebKit Remote File System Write and Code Execution Vulnerabilities, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 05/24/2025 10:48
Changes: 03/23/2015 16:50 (71), 03/28/2017 10:32 (13), 11/15/2021 12:28 (4), 11/15/2021 12:35 (1), 01/19/2025 19:19 (18), 05/24/2025 10:48 (1)
Complete: 🔍
Cache ID: 216:B19:103

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

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