VDB-122008 · CVE-2018-14438 · BID 104876

Wireshark up to 2.6.2 wsutil/file_util.c create_app_running_mutex input validation

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.
7.4	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in Wireshark up to 2.6.2. The impacted element is the function create_app_running_mutex of the file wsutil/file_util.c. Executing a manipulation can lead to input validation. This vulnerability appears as CVE-2018-14438. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability has been found in Wireshark up to 2.6.2 (Packet Analyzer Software) and classified as critical. This vulnerability affects the function create_app_running_mutex of the file wsutil/file_util.c. 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 confidentiality, integrity, and availability. CVE summarizes:

In Wireshark through 2.6.2, the create_app_running_mutex function in wsutil/file_util.c calls SetSecurityDescriptorDacl to set a NULL DACL, which allows attackers to modify the access control arbitrarily.

The bug was discovered 06/28/2018. The weakness was presented 07/20/2018 (Website). The advisory is shared for download at securityfocus.com. This vulnerability was named CVE-2018-14438 since 07/19/2018. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 21 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 104876†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Packet Analyzer Software

Name

Wireshark

Version

License

open-source

Website

Product: https://www.wireshark.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/28/2018 🔍
07/19/2018 +20 days 🔍
07/19/2018 +0 days 🔍
07/20/2018 +1 days 🔍
07/20/2018 +0 days 🔍
07/24/2018 +4 days 🔍
03/08/2020 +593 days 🔍

Sourcesinfo

Product: wireshark.org

Advisory: securityfocus.com⛔
Status: Not defined

CVE: CVE-2018-14438 (🔍)
GCVE (CVE): GCVE-0-2018-14438
GCVE (VulDB): GCVE-100-122008
SecurityFocus: 104876 - Wireshark CVE-2018-14438 Security Bypass Vulnerability

Entryinfo

Created: 07/20/2018 09:51
Updated: 03/08/2020 22:39
Changes: 07/20/2018 09:51 (62), 03/08/2020 22:39 (3)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.