8.3

CVE-2019-9900

Exploit
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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Envoyproxy ≫ Envoy Version <= 1.9.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 3.73% 0.884
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 8.3 3.9 3.7
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
nvd@nist.gov 7.5 10 6.4
AV:N/AC:L/Au:N/C:P/I:P/A:P
cve@mitre.org 6.5 2.2 3.7
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

https://access.redhat.com/errata/RHSA-2019:0741
Third Party Advisory
https://github.com/envoyproxy/envoy/issues/6434
Third Party Advisory
Exploit
Issue Tracking
https://github.com/envoyproxy/envoy/security/advisories/GHSA-x74r-f4mw-c32h
Third Party Advisory
Exploit
Mitigation
https://groups.google.com/forum/#%21topic/envoy-announce/VoHfnDqZiAM
https://www.envoyproxy.io/docs/envoy/v1.9.1/intro/version_history
Vendor Advisory
Release Notes