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Redhat.comRH:CVE-2022-21657

HistoryFeb 23, 2022 - 6:50 a.m.

CVE-2022-21657

2022-02-2306:50:02

redhat.com

access.redhat.com

flaw

envoy

unrestrictive certificates

tls client

tls server

extendedkeyusage

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

6.8

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

EPSS

0.001

Percentile

19.4%

JSON

A flaw was found in envoy. This issue occurs when it does not restrict the set of certificates it accepts from the peer, either as a TLS client or a TLS server, and only to those certificates that contain the necessary extendedKeyUsage (id-kp-serverAuth and id-kp-clientAuth, respectively).

References

bugzilla.redhat.com/show_bug.cgi?id=2057272

github.com/envoyproxy/envoy/pull/630

github.com/envoyproxy/envoy/security/advisories/GHSA-837m-wjrv-vm5g

nvd.nist.gov/vuln/detail/CVE-2022-21657

www.cve.org/CVERecord?id=CVE-2022-21657

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

6.8

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

EPSS

0.001

Percentile

19.4%

JSON

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