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CVE-2026-79901: CWE-338 Use of cryptographically weak Pseudo-Random number generator (PRNG) in Fortra BoKS Manager boks-server

0
Critical
VulnerabilityCVE-2026-79901cvecve-2026-79901cwe-338
Published: 10/01/2026 (10/01/2026, 13:52:27 UTC)
Source: CVE Database V5
Vendor/Project: Fortra
Product: BoKS Manager boks-server

Description

In deployments using BoKS keytab management, affected versions of boks_keytabmd generate Active Directory service-account passwords from a predictable pseudo-random sequence seeded with the current Unix timestamp. An attacker who knows the service principal and can estimate the password-change time can reproduce a limited candidate set and verify candidates offline.

CVSS v3.1

Score 9.9critical

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected software

Fortra

BoKS Manager boks-server

Affected versions
>=0 <9.0.0.6
GitHub Actionsmore threats →ai
fortra/BoKS-Manager-boks-server
pkg:github/fortra/BoKS-Manager-boks-server
Affected versions
>=0 <9.0.0.6

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 10/01/2026, 15:08:12 UTC

Technical Analysis

The vulnerability arises from the use of a weak PRNG seeded with the current Unix timestamp in the boks_keytabmd component of Fortra BoKS Manager boks-server. This predictable password generation method allows an attacker with knowledge of the service principal and approximate password-change timing to generate and verify candidate passwords offline. This flaw affects all versions from 0 up to 9.0.0.6. The CVSS v3.1 score is 9.9, indicating critical severity with network attack vector, low attack complexity, low privileges required, no user interaction, and complete impact on confidentiality, integrity, and availability.

Potential Impact

Successful exploitation allows an attacker to recover Active Directory service-account passwords generated by the vulnerable PRNG, leading to potential unauthorized access and full compromise of affected systems. The vulnerability impacts confidentiality, integrity, and availability of the service accounts and associated resources.

Mitigation Recommendations

No official patch or remediation information is provided in the vendor advisory or input data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, organizations should consider additional compensating controls such as monitoring for unusual authentication activity and restricting knowledge of service principal details to limit attack feasibility.

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Technical Details

Data Version
5.2
Assigner Short Name
Fortra
Date Reserved
2026-08-25T14:50:15.178Z
Cvss Version
3.1
State
PUBLISHED

Threat ID: 6abe7482a43b0b3b89bcf3e9

Added to database: 10/01/2026, 14:56:02 UTC

Last enriched: 10/01/2026, 15:08:12 UTC

Last updated: 10/01/2026, 23:06:05 UTC

Views: 5

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