VDB-121425 · CVE-2018-7535 · Qualys 371073

TotalAV 4.1.7 Permission permission

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.
6.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in TotalAV 4.1.7 and classified as critical. The impacted element is an unknown function of the component Permission. Performing a manipulation results in permission. This vulnerability is known as CVE-2018-7535. Attacking locally is a requirement. No exploit is available.

Detailsinfo

A vulnerability was found in TotalAV 4.1.7. It has been classified as critical. This affects an unknown part of the component Permission. The manipulation with an unknown input leads to a permission vulnerability. CWE is classifying the issue as CWE-275. This is going to have an impact on integrity, and availability. The summary by CVE is:

An issue was discovered in TotalAV v4.1.7. An unprivileged user could modify or overwrite all of the product's files because of weak permissions (Everyone:F) under %PROGRAMFILES%, which allows local users to gain privileges or obtain maximum control over the product.

The bug was discovered 07/12/2018. The weakness was published 07/13/2018 as not defined mailinglist post (Full-Disclosure). The advisory is shared at seclists.org. This vulnerability is uniquely identified as CVE-2018-7535 since 02/26/2018. An attack has to be approached locally. A authentication is necessary for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1222 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371073 (TotalAV Privilege Escalation Vulnerability).

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

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

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.1

VulDB Base Score: 4.4
VulDB Temp Score: 4.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Permission
CWE: CWE-275 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/26/2018 🔍
07/12/2018 +136 days 🔍
07/13/2018 +0 days 🔍
07/13/2018 +0 days 🔍
07/13/2018 +0 days 🔍
03/04/2020 +600 days 🔍

Sourcesinfo

Advisory: seclists.org
Status: Not defined

CVE: CVE-2018-7535 (🔍)
GCVE (CVE): GCVE-0-2018-7535
GCVE (VulDB): GCVE-100-121425

Entryinfo

Created: 07/14/2018 00:59
Updated: 03/04/2020 19:56
Changes: 07/14/2018 00:59 (59), 03/04/2020 19:56 (1)
Complete: 🔍
Cache ID: 216::103

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

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