Microsoft Edge JSON memory corruption

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.
5.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Edge. It has been rated as problematic. Affected is an unknown function of the component JSON Handler. This manipulation causes memory corruption. This vulnerability appears as CVE-2016-7181. The attack may be initiated remotely. There is no available exploit. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability has been found in Microsoft Edge (Web Browser) (version unknown) and classified as problematic. Affected by this vulnerability is an unknown function of the component JSON Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality. The summary by CVE is:

Microsoft Edge allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Microsoft Edge Memory Corruption Vulnerability."

The bug was discovered 12/14/2015. The weakness was presented 12/13/2016 by Veit Hailperin with scip AG as MS16-145 as confirmed bulletin (Technet). It is possible to read the advisory at technet.microsoft.com. The vendor was not involved in the public release. This vulnerability is known as CVE-2016-7181. The exploitation appears to be easy. The attack can be launched remotely. The successful exploitation requires a single authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/08/2022). The advisory points out:

If there is user injected content, it is possible to leak data using cross-site scripting inclusion with an encoding of UTF-7.
Microsoft is claiming this is a memory corruption issue which is not true.

The vulnerability was handled as a non-public zero-day exploit for at least 365 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 95809 (MS16-145: Cumulative Security Update for Microsoft Edge (3204062)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 91316 (Microsoft Edge Cumulative Security Update (MS16-145)).

Applying the patch MS16-145 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.

The vulnerability is also documented in the databases at Tenable (95809) and SecurityFocus (BID 94735†). Additional details are provided at scip.ch. See VDB-94417, VDB-94418, VDB-94419 and VDB-94422 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

Researcher Base Score: 🔍
NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 95809
Nessus Name: MS16-145: Cumulative Security Update for Microsoft Edge (3204062)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 800873
OpenVAS Name: Microsoft Edge Multiple Vulnerabilities (3204062)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: MS16-145

Timelineinfo

12/14/2015 🔍
06/21/2016 +190 days 🔍
09/09/2016 +79 days 🔍
12/13/2016 +95 days 🔍
12/13/2016 +0 days 🔍
12/14/2016 +1 days 🔍
12/20/2016 +6 days 🔍
10/08/2022 +2118 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS16-145
Researcher: Veit Hailperin
Organization: scip AG
Status: Confirmed

CVE: CVE-2016-7181 (🔍)
GCVE (CVE): GCVE-0-2016-7181
GCVE (VulDB): GCVE-100-94423

OVAL: 🔍

SecurityFocus: 94735
SecurityTracker: 1037444

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 12/14/2016 13:59
Updated: 10/08/2022 09:28
Changes: 12/14/2016 13:59 (64), 10/08/2018 15:19 (21), 10/08/2022 09:21 (5), 10/08/2022 09:25 (11), 10/08/2022 09:28 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to know what is going to be exploited?

We predict KEV entries!