CVE-2021-43350

Q: How do I fix CVE-2021-43350?

Upgrade traffic control to 6.0.1 or later.

Q: Is CVE-2021-43350 being actively exploited?

Not that we know of. CVE-2021-43350 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 4.4% is the estimated probability that it will be exploited in the next 30 days. That is higher than 90% of all scored CVEs.

Q: How severe is CVE-2021-43350?

CVE-2021-43350 has a CVSS v3 base score of 9.8, rated critical. 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-2021-43350 affect?

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

CRITICALEPSS 90th pctl

9.8

CVSS v3

NVD

Description

An unauthenticated Apache Traffic Control Traffic Ops user can send a request with a specially-crafted username to the POST /login endpoint of any API version to inject unsanitized content into the LDAP filter.

CWE-90 CWE-74Injection

How to fix

Remediation Available

traffic controlNVD

Affected:>= 6.0.0, < 6.0.1Fixed in:6.0.1CVE-2021-43350derived 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 VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

4.43%probability of exploitation in 30 days

90thpercentile

High risk: more likely to be exploited than 90% of all known CVEs.

References

Vendor Advisory1

trafficcontrol.apache.org

Third-Party Advisory3

Related Vulnerabilities

Other CWE-90 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2016-9299	Critical	9.8	97%	-	-
CVE-2017-14596	Critical	9.8	6.9%	-	-
CVE-2016-8750	Medium	6.5	5.2%	-	Fix
CVE-2017-4927	High	7.5	2.3%	-	Fix
CVE-2024-27310	Medium	5.3	2.3%	-	Fix
CVE-2018-5730	Low	3.8	2.3%	-	Fix

Common questions

How do I fix CVE-2021-43350?

Upgrade traffic control to 6.0.1 or later.

Is CVE-2021-43350 being actively exploited?

Not that we know of. CVE-2021-43350 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 4.4% is the estimated probability that it will be exploited in the next 30 days. That is higher than 90% of all scored CVEs.

How severe is CVE-2021-43350?

CVE-2021-43350 has a CVSS v3 base score of 9.8, rated critical. 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-2021-43350 affect?

Published advisories record a fix for traffic control (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.