CVE-2021-4259

Q: How do I fix CVE-2021-4259?

Upgrade phpredisadmin to 1.16.2 or later.

Q: Is CVE-2021-4259 being actively exploited?

Not that we know of. CVE-2021-4259 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.78% is the estimated probability that it will be exploited in the next 30 days. That is higher than 52% of all scored CVEs.

Q: How severe is CVE-2021-4259?

CVE-2021-4259 has a CVSS v3 base score of 5.0, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2021-4259 affect?

Published advisories record a fix for phpredisadmin (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

MEDIUM

5.0

CVSS v3

NVD

Description

A vulnerability was found in phpRedisAdmin up to 1.16.1. It has been classified as problematic. This affects the function authHttpDigest of the file includes/login.inc.php. The manipulation of the argument response leads to use of wrong operator in string comparison. Upgrading to version 1.16.2 is able to address this issue. The name of the patch is 31aa7661e6db6f4dffbf9a635817832a0a11c7d9. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-216267.

CWE-597

How to fix

Remediation Available

phpredisadminNVD

Affected:< 1.16.2Fixed in:1.16.2CVE-2021-4259derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorAdjacent

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityLow

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Exploit Intelligence

0.78%probability of exploitation in 30 days

52ndpercentile

Moderate risk: more likely to be exploited than 52% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory2

Related Vulnerabilities

Other CWE-597 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-3797	Critical	9.8	1.1%	-	-
CVE-2022-36072	Medium	5.9	0.5%	-	Fix

Common questions

How do I fix CVE-2021-4259?

Upgrade phpredisadmin to 1.16.2 or later.

Is CVE-2021-4259 being actively exploited?

Not that we know of. CVE-2021-4259 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.78% is the estimated probability that it will be exploited in the next 30 days. That is higher than 52% of all scored CVEs.

How severe is CVE-2021-4259?

CVE-2021-4259 has a CVSS v3 base score of 5.0, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2021-4259 affect?

Published advisories record a fix for phpredisadmin (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.