VDB-191225 · CVE-2021-31854 · SB10378

McAfee Agent up to 5.7.4 on Windows Deployment cleanup.exe code injection

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.
7.5	$0-$5k	0.00

A vulnerability, which was classified as critical, has been found in McAfee Agent up to 5.7.4 on Windows. This issue affects some unknown processing of the file cleanup.exe of the component Deployment Handler. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The software constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability.

The weakness was published 01/19/2022 as SB10378. The advisory is shared at kc.mcafee.com. The identification of this vulnerability is CVE-2021-31854 since 04/27/2021. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/26/2022). MITRE ATT&CK project uses the attack technique T1059 for this issue.

It is declared as proof-of-concept.

Upgrading to version 5.7.5 eliminates this vulnerability.

Productinfo

Vendor

McAfee

Name

Agent

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 7.5

VulDB Base Score: 8.8
VulDB Temp Score: 7.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (McAfee): 7.7
Vendor Vector (McAfee): 🔍

CNA Base Score: 7.7
CNA Vector (McAfee): 🔍

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: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
ATT&CK: T1059

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Agent 5.7.5

Timelineinfo

04/27/2021 🔍
01/19/2022 +267 days 🔍
01/19/2022 +0 days 🔍
01/26/2022 +7 days 🔍

Sourcesinfo

Vendor: mcafee.com

Advisory: SB10378
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-31854 (🔍)

Entryinfo

Created: 01/19/2022 03:57 PM
Updated: 01/26/2022 08:11 PM
Changes: 01/19/2022 03:57 PM (52), 01/26/2022 03:16 AM (2), 01/26/2022 08:11 PM (18)
Complete: 🔍