Disabling MFA without Authentication

published 2024-08-12 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-39454

cvss: 4.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 29%
public exploits: 0; none known

Insufficiently random values for generating password reset token in FIWARE Keyrock <= 8.4 allow attackers to disable two factor authorization of any user by predicting the token for the disable_2fa link.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-08-12)

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

ait.ac.at https://www.ait.ac.at/themen/cyber-security/pentesting/security-advisories referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
NVD	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected products

FIWARE FIWARE Keyrock

Classification

Weakness

CWE-287 Improper Authentication
CWE-330 Use of Insufficiently Random Values

References

ait.ac.at /themen/cyber-security/pentesting/security-advisories
exploit, third-party-advisory

Sources

CVE List CVE-2024-42164
NVD CVE-2024-42164

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary