What is CVE-2021-35247?

CVE-2021-35247 is a vulnerability in SolarWinds Serv-U that allows unauthorized characters in LDAP authentication, leading to improper input validation.

What is the severity of CVE-2021-35247?

The severity of CVE-2021-35247 is medium with a CVSS score of 5.3.

Has SolarWinds released a fix for CVE-2021-35247?

Yes, SolarWinds has updated the input mechanism in Serv-U to perform additional validation and sanitization to address CVE-2021-35247.

Are there any downstream effects of CVE-2021-35247?

No downstream effects have been detected as the LDAP servers ignored the improper characters.

Vulnerability/
CVE-2021-35247

Exploited

medium

5.3

CWE

7/1/2022

21/11/2024

CVE-2021-35247: SolarWinds Serv-U Improper Input Validation Vulnerability

Q: How does CVE-2021-35247 affect SolarWinds Serv-U?

CVE-2021-35247 affects SolarWinds Serv-U by allowing characters that were not sufficiently sanitized in the web login screen to LDAP authentication.

First published: Fri Jan 07 2022(Updated: )

Serv-U web login screen to LDAP authentication was allowing characters that were not sufficiently sanitized. SolarWinds has updated the input mechanism to perform additional validation and sanitization. Please Note: No downstream affect has been detected as the LDAP servers ignored improper characters. To insure proper input validation is completed in all environments. SolarWinds recommends scheduling an update to the latest version of Serv-U.

Credit: psirt@solarwinds.com psirt@solarwinds.com

Affected Software	Affected Version	How to fix
SolarWinds Serv-U	<15.3
SolarWinds Serv-U
	<15.3

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Frequently Asked Questions

What is CVE-2021-35247?
CVE-2021-35247 is a vulnerability in SolarWinds Serv-U that allows unauthorized characters in LDAP authentication, leading to improper input validation.
What is the severity of CVE-2021-35247?
The severity of CVE-2021-35247 is medium with a CVSS score of 5.3.
How does CVE-2021-35247 affect SolarWinds Serv-U?
CVE-2021-35247 affects SolarWinds Serv-U by allowing characters that were not sufficiently sanitized in the web login screen to LDAP authentication.
Has SolarWinds released a fix for CVE-2021-35247?
Yes, SolarWinds has updated the input mechanism in Serv-U to perform additional validation and sanitization to address CVE-2021-35247.
Are there any downstream effects of CVE-2021-35247?
No downstream effects have been detected as the LDAP servers ignored the improper characters.

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collector/mitre-cve
source/MITRE
agent/severity
agent/weakness
agent/last-modified-date
agent/first-publish-date
agent/event
exploited/true
collector/cisa-known-exploited
source/CISA
agent/software-canonical-lookup
agent/references
agent/tags
collector/nvd-cve
source/NVD
vendor/solarwinds
canonical/solarwinds serv-u

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