Vulnerability · Published Sep 7, 2023 · Assigned by SolarWinds

CVE-2023-400602FA/MFA Bypass Vulnerability in Serv-U 15.4 and 15.4 Hotfix 1

High 7.2

In plain English

A high-severity improper access control in Serv-U from SolarWinds . There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 63% of all known vulnerabilities).

Severity (CVSS 3.1)7.2High
Exploit odds (30 days)1.0%top 36.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A vulnerability has been identified within Serv-U 15.4 and 15.4 Hotfix 1 that, if exploited, allows an actor to bypass multi-factor/two-factor authentication. The actor must have administrator-level access to Serv-U to perform this action. 15.4.  SolarWinds found that the issue was not completely fixed in 15.4 Hotfix 1. 

Affected products (as reported)

VendorProductVersions
SolarWinds Serv-U 15.4 – through 15.4 Hotfix 1

Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References