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CVE-2023-51638

Alltena Allegra authentication bypass

9.8 CRITICALEPSS 1.37%
  1. Published22 Nov 2024

Description

Allegra Hard-coded Credentials Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of Allegra. Authentication is not required to exploit this vulnerability. The specific flaw exists within the configuration of a database. The issue results from the use of a hardcoded password. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-22360.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Alltena Allegra< 7.5.1

Remediation

Fixed in
Alltena Allegra≥ 7.5.1

Frequently asked

Is CVE-2023-51638 being actively exploited?

CVE-2023-51638 is not in the CISA KEV catalog. Its EPSS exploit probability is 1.37%.

How severe is CVE-2023-51638?

CVE-2023-51638 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 1.37% probability of exploitation.

Which products are affected by CVE-2023-51638?

Affected products include Alltena Allegra.

How do I fix CVE-2023-51638?

Upgrade affected software to a fixed version, for example Alltena Allegra 7.5.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-51638 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.