Vulnerability Monitor

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CVE-2020-27782

A flaw was found in the Undertow AJP connector. Malicious requests and abrupt connection closes could be triggered by an attacker using query strings with non-RFC compliant characters resulting in a denial of service. The highest threat from this vulnerability is to system availability. This affects Undertow 2.1.5.SP1, 2.0.33.SP2, and 2.2.3.SP1.

Published

2021-02-23T19:15:13.150

Last Modified

2024-11-21T05:21:49.550

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

10.0

Impact Score

6.9

Weaknesses
  • Type: Secondary
    CWE-400
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application redhat jboss_fuse 6.0.0 Yes
Application redhat jboss_fuse 7.0.0 Yes
Application redhat openshift_application_runtimes - Yes
Application redhat undertow 2.0.33 Yes
Application redhat undertow 2.1.5 Yes
Application redhat undertow 2.2.3 Yes
References