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CVE-2019-9900

HIGH

8.3

Description

When parsing HTTP/1.x header values, Envoy 1.9.0 and before does not reject embedded zero characters (NUL, ASCII 0x0). This allows remote attackers crafting header values containing embedded NUL characters to potentially bypass header matching rules, gaining access to unauthorized resources.

CVE Details

CVSS v3.1 Score8.3

SeverityHIGH

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published4/25/2019

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

envoyproxy:envoyredhat:openshift_service_mesh

Weaknesses (CWE)

CWE-74

References

https://access.redhat.com/errata/RHSA-2019:0741(cve@mitre.org)

https://github.com/envoyproxy/envoy/issues/6434(cve@mitre.org)

https://github.com/envoyproxy/envoy/security/advisories/GHSA-x74r-f4mw-c32h(cve@mitre.org)

https://groups.google.com/forum/#%21topic/envoy-announce/VoHfnDqZiAM(cve@mitre.org)

https://www.envoyproxy.io/docs/envoy/v1.9.1/intro/version_history(cve@mitre.org)

https://access.redhat.com/errata/RHSA-2019:0741(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/envoyproxy/envoy/issues/6434(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/envoyproxy/envoy/security/advisories/GHSA-x74r-f4mw-c32h(af854a3a-2127-422b-91ae-364da2661108)

https://groups.google.com/forum/#%21topic/envoy-announce/VoHfnDqZiAM(af854a3a-2127-422b-91ae-364da2661108)

https://www.envoyproxy.io/docs/envoy/v1.9.1/intro/version_history(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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