CVE-2021-31845

EUVD-2021-18720

17.09.2021, 14:15

A buffer overflow vulnerability in McAfee Data Loss Prevention (DLP) Discover prior to 11.6.100 allows an attacker in the same network as the DLP Discover to execute arbitrary code through placing carefully constructed Ami Pro (.sam) files onto a machine and having DLP Discover scan it, leading to remote code execution with elevated privileges. This is caused by the destination buffer being of fixed size and incorrect checks being made on the source size.

Classic Buffer Overflow

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	8.4 HIGH	ADJACENT_NETWORK	LOW	LOW	CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
trellix	CNA	8.4 HIGH	ADJACENT_NETWORK	LOW	LOW	CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: 76%

Affected Products (NVD)

Vendor	Product	Version
mcafee	data_loss_prevention_discover	𝑥 < 11.6.100
mcafee	data_loss_prevention_discover	11.7.0 ≤ 𝑥 < 11.7.100

𝑥

= Vulnerable software versions

Common Weakness Enumeration

CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
The program copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

References

https://kc.mcafee.com/corporate/index?page=content&id=SB10368