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Redhat.comRH:CVE-2021-33621HistoryNov 30, 2022 - 4:56 p.m.
CVE-2021-33621
2022-11-3016:56:14
redhat.com
access.redhat.com
19
cve-2021-33621
ruby
http header injection
cgi application
untrusted input
http response header
attacker
newline character
malicious content
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.6 High
AI Score
Confidence
High
0.004 Low
EPSS
Percentile
74.8%
A vulnerability was found in Ruby that allows HTTP header injection. A CGI application using the CGI library may insert untrusted input into the HTTP response header. This issue can allow an attacker to insert a newline character to split a header and inject malicious content to deceive clients.
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8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.6 High
AI Score
Confidence
High
0.004 Low
EPSS
Percentile
74.8%
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