Vulnerability · Published Jun 3, 2021 · Assigned by icscert

CVE-2021-32926

Medium 5.9

In plain English

A medium-severity security flaw in Micro800, MicroLogix 1400. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.0% (higher than 87% of all known vulnerabilities).

Severity (CVSS 3.1)5.9Medium

Exploit odds (30 days)3.0%top 12.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

When an authenticated password change request takes place, this vulnerability could allow the attacker to intercept the message that includes the legitimate, new password hash and replace it with an illegitimate hash. The user would no longer be able to authenticate to the controller (Micro800: All versions, MicroLogix 1400: Version 21 and later) causing a denial-of-service condition

Affected products (as reported)

Vendor	Product	Versions
n/a	Micro800, MicroLogix 1400	Micro800: All versions, MicroLogix 1400: Version 21 and later when Enhanced Password Security enabled.

Weakness: CWE-300 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-145-02 x_refsource_MISC