Microsoft Windows up to Vista TrueType Font Parser input validation

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

A vulnerability classified as critical has been found in Microsoft Windows up to Vista (Operating System). Affected is an unknown functionality of the component TrueType Font Parser. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 08/11/2015 by Mateusz Jurczyk with Google Project Zero as MS15-080 as confirmed bulletin (Technet). The advisory is available at technet.microsoft.com. This vulnerability is traded as CVE-2015-2455 since 03/19/2015. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available.

The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 85347 (Microsoft Silverlight < 5.1.40728.0 Multiple Vulnerabilities (MS15-080) (Mac OS X)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 91085 (Microsoft Graphics Component Remote Code Execution Vulnerability (MS15-080)).

Applying the patch MS15-080 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 20351.

The vulnerability is also documented in the vulnerability database at Tenable (85347). The entries 77015, 77016, 77017 and 77018 are pretty similar.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

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

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
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CVSSv2info

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Exploitinginfo

Class: Input validation
CWE: CWE-20
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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Nessus ID: 85347
Nessus Name: Microsoft Silverlight < 5.1.40728.0 Multiple Vulnerabilities (MS15-080) (Mac OS X)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Patch: MS15-080
TippingPoint: 🔍
Fortigate IPS: 🔍

Timelineinfo

03/19/2015 🔍
08/11/2015 +145 days 🔍
08/11/2015 +0 days 🔍
08/11/2015 +0 days 🔍
08/11/2015 +0 days 🔍
08/11/2015 +0 days 🔍
08/12/2015 +1 days 🔍
08/12/2015 +0 days 🔍
08/14/2015 +2 days 🔍
06/08/2022 +2490 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS15-080
Researcher: Mateusz Jurczyk
Organization: Google Project Zero
Status: Confirmed

CVE: CVE-2015-2455 (🔍)
SecurityTracker: 1033238 - Microsoft Graphics Component Bugs Let Remote Users Execute Arbitrary Code and Remote Authenticated Users Bypass Security Features and Gain Elevated Privileges
Vulnerability Center: 51831 - [MS15-080] Microsoft Window, .NET, Office, Lync and Silverlight Remote Code Execution in OpenType Font Parsing - CVE-2015-2455, Critical
SecurityFocus: 76216 - Microsoft Windows TrueType Fonts CVE-2015-2455 Remote Code Execution Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20161215
See also: 🔍

Entryinfo

Created: 08/12/2015 11:59
Updated: 06/08/2022 04:15
Changes: 08/12/2015 11:59 (79), 05/03/2019 06:53 (3), 06/08/2022 04:06 (4), 06/08/2022 04:15 (1)
Complete: 🔍

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