CVE-2024-46937: An improper access control (IDOR) vulnerability in the /api-selfportal/get-info-token-properties endpoint in M

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HIGH 7.5REMOTEUPGRADE

CVE-2024-46937 is a high-severity flaw (CVSS 7.5) affecting secure authentication server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An improper access control (IDOR) vulnerability in the /api-selfportal/get-info-token-properties endpoint in MFASOFT Secure Authentication Server (SAS) 1.8.x through 1.9.x before 1.9.040924 allows remote attackers gain access to user tokens without authentication. The is a brute-force attack on the serial parameter by number identifier: GA00001, GA00002, GA00003, etc.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 58%)
CISA exploited list	No
Weakness	CWE-639
Published	2024-09-16
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: mfasoft

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-09-16 13:15 UTCPublished CVE record published
2026-06-17 07:56 UTCUpdated Record last modified

mfasoft secure authentication server UPGRADE

Affected: >= 1.8.0 and < 1.9.040924

Fixed in: 1.9.040924

Safe to downgrade to: a release before 1.8.0

1. Check installed version

apt-cache policy secure-authentication-server || rpm -q secure-authentication-server || secure-authentication-server --version

2. UPGRADE to 1.9.040924 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade secure-authentication-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade secure-authentication-server

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 1.8.0 (Debian / Ubuntu)

apt-cache madison secure-authentication-server sudo apt install secure-authentication-server=<VERSION_BEFORE_1.8.0> sudo apt-mark hold secure-authentication-server

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list secure-authentication-server sudo dnf downgrade secure-authentication-server-<VERSION_BEFORE_1.8.0> sudo dnf versionlock add secure-authentication-server

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-46937?

secure authentication server: upgrade to 1.9.040924. Exact commands for each OS are on this page.

Is CVE-2024-46937 being exploited?

CVE-2024-46937 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-46937 affect?

CVE-2024-46937 affects secure authentication server. Severity is high (CVSS 7.5). An improper access control (IDOR) vulnerability in the /api-selfportal/get-info-token-properties endpoint in MFASOFT Secure Authentication Server (SAS) 1.8.x through 1.9.x before 1.9.040924 allows remote attackers gain access to user tokens

How urgent is CVE-2024-46937?

Priority 42/100. High severity; Remotely exploitable, no login, no user action

References

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