CVE-2023-6451: Publicly known cryptographic machine key in AlayaCare's Procura Portal before 9.0.1.2 allows attackers to forg

Q: How do I fix CVE-2023-6451?

procura: upgrade to 9.0.1.2. Exact commands for each OS are on this page.

Q: Is CVE-2023-6451 being exploited?

CVE-2023-6451 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-6451 affect?

CVE-2023-6451 affects procura. Severity is high (CVSS 8.6). Publicly known cryptographic machine key in AlayaCare's Procura Portal before 9.0.1.2 allows attackers to forge their own authentication cookies and bypass the application's authentication mechanisms.

Q: How urgent is CVE-2023-6451?

Priority 46/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 8.6REMOTEUPGRADE

CVE-2023-6451 is a high-severity flaw (CVSS 8.6) affecting procura. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Publicly known cryptographic machine key in AlayaCare's Procura Portal before 9.0.1.2 allows attackers to forge their own authentication cookies and bypass the application's authentication mechanisms.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.6 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 55%)
CISA exploited list	No
Weakness	CWE-1394, CWE-287
Published	2024-02-16
Last modified	2026-06-17

Publisher (CNA): The Missing Link Australia (TML) · Vendor: alayacare

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

Am I affected?

Timeline

2024-02-16 04:15 UTCPublished CVE record published
2026-06-17 06:50 UTCUpdated Record last modified

alayacare procura UPGRADE

Affected: < 9.0.1.2

Fixed in: 9.0.1.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy procura || rpm -q procura || procura --version

2. UPGRADE to 9.0.1.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade procura

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade procura

Note

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

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-2023-6451?

procura: upgrade to 9.0.1.2. Exact commands for each OS are on this page.

Is CVE-2023-6451 being exploited?

CVE-2023-6451 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-2023-6451 affect?

CVE-2023-6451 affects procura. Severity is high (CVSS 8.6). Publicly known cryptographic machine key in AlayaCare's Procura Portal before 9.0.1.2 allows attackers to forge their own authentication cookies and bypass the application's authentication mechanisms.

How urgent is CVE-2023-6451?

Priority 46/100. High severity; Remotely exploitable, no login, no user action

References

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