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CVE-2021-43271

MEDIUMCVSS 6.8/10EPSS 0.76%

Last modified

CVE-2021-43271 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. Riverbed AppResponse 11.8.0, 11.8.5, 11.8.5a, 11.9.0, 11.9.0a, 11.10.0, 11.11.0, 11.11.0a, 11.11.1, 11.11.1a, 11.11.5, and 11.11.5a (when configured to use local, RADIUS, or TACACS authentication) logs usernames and passwords if either is entered incorrectly. If a user enters an incorrect username and/or password when logging into the WebUI, these attempted credentials are included in an error message that is logged in the WebUI log file. EPSS estimates a 0.76% chance of exploitation in the next 30 days.

Description

Riverbed AppResponse 11.8.0, 11.8.5, 11.8.5a, 11.9.0, 11.9.0a, 11.10.0, 11.11.0, 11.11.0a, 11.11.1, 11.11.1a, 11.11.5, and 11.11.5a (when configured to use local, RADIUS, or TACACS authentication) logs usernames and passwords if either is entered incorrectly. If a user enters an incorrect username and/or password when logging into the WebUI, these attempted credentials are included in an error message that is logged in the WebUI log file. A log entry does not appear if the username and password provided correctly match a valid set of credentials. This also does not happen if AppResponse is configured to use SAML authentication. The WebUI log file is included in subsequent diagnostic system dumps that are generated. (Only users with Full Control access to the System Configuration permission can generate system dumps. By default, only System Administrators have Full Control access to the System Configuration permission.)

Metrics

CVSS 3.1
6.8/10

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

EPSS Probability
0.76%

50.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
RiverbedAppresponse11.8.0
RiverbedAppresponse11.8.5
RiverbedAppresponse11.8.5a
RiverbedAppresponse11.9.0
RiverbedAppresponse11.9.0a
RiverbedAppresponse11.10.0
RiverbedAppresponse11.11.0
RiverbedAppresponse11.11.0a
RiverbedAppresponse11.11.1
RiverbedAppresponse11.11.1a
RiverbedAppresponse11.11.5
RiverbedAppresponse11.11.5a

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-43271?
Riverbed AppResponse 11.8.0, 11.8.5, 11.8.5a, 11.9.0, 11.9.0a, 11.10.0, 11.11.0, 11.11.0a, 11.11.1, 11.11.1a, 11.11.5, and 11.11.5a (when configured to use local, RADIUS, or TACACS authentication) logs usernames and passwords if either is entered incorrectly. If a user enters an incorrect username and/or password when logging into the WebUI, these attempted credentials are included in an error message that is logged in the WebUI log file. A log entry does not appear if the username and password provided correctly match a valid set of credentials. This also does not happen if AppResponse is configured to use SAML authentication. The WebUI log file is included in subsequent diagnostic system dumps that are generated. (Only users with Full Control access to the System Configuration permission can generate system dumps. By default, only System Administrators have Full Control access to the System Configuration permission.)
How severe is CVE-2021-43271?
CVE-2021-43271 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.76% probability of exploitation in the next 30 days.
How do I fix CVE-2021-43271?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-43271?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST