VDB-12066 · BID 65066 · OSVDB 102412

WebkitGTK+ Auditor srcdoc security check

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.
5.7	$0-$5k	0.00

Summaryinfo

A vulnerability described as problematic has been identified in WebkitGTK+. Affected is an unknown function of the component Auditor. The manipulation of the argument srcdoc with the input iframe src=""srcdoc="<script>alert('xss')</script>" results in security check. The attack can be executed remotely. Additionally, an exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in WebkitGTK+ (Web Browser). It has been classified as problematic. Affected is an unknown code block of the component Auditor. The manipulation of the argument srcdoc with the input value iframe src=""srcdoc="<script>alert('xss')</script>" leads to a security check vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 01/22/2014 as Chrome (and Safari) antiXSS filter bypass as confirmed mailinglist post (Full-Disclosure). The advisory is available at seclists.org. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details and a public exploit are known. This vulnerability is assigned to T1211 by the MITRE ATT&CK project.

A public exploit has been developed in HTML/Javascript 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 91 days. During that time the estimated underground price was around $0-$5k.

Upgrading eliminates this vulnerability. The mailinglist post contains the following remark:

Chrome has just fixed it in recent 32.0.1700.76 version.

The vulnerability is also documented in the databases at SecurityFocus (BID 65066†) and OSVDB (102412†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

WebkitGTK+
Apple Safari
Google Chrome 31.0.1650.63

Productinfo

Type

Web Browser

Name

WebkitGTK+

License

open-source

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Security check
CWE: CWE-358
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

10/23/2013 🔍
01/20/2014 +89 days 🔍
01/22/2014 +2 days 🔍
01/22/2014 +0 days 🔍
01/24/2014 +2 days 🔍
08/18/2016 +937 days 🔍

Sourcesinfo

Advisory: Chrome (and Safari) antiXSS filter bypass
Status: Confirmed

GCVE (VulDB): GCVE-100-12066
SecurityFocus: 65066 - Google Chrome Cross Site Scripting Filter Security Bypass Vulnerability
OSVDB: 102412

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

Entryinfo

Created: 01/24/2014 12:00
Updated: 08/18/2016 11:11
Changes: 01/24/2014 12:00 (48), 08/18/2016 11:11 (6)
Complete: 🔍
Cache ID: 216:1BC:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.