CVE-2019-9900
Published Apr 25, 2019
Last updated a year ago
Overview
- 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.
- Source
- cve@mitre.org
- NVD status
- Modified
Social media
- Hype score
- Not currently trending
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 8.3
- Impact score
- 3.7
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
- Severity
- HIGH
CVSS 3.0
- Type
- Secondary
- Base score
- 6.5
- Impact score
- 3.7
- Exploitability score
- 2.2
- Vector string
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
- Severity
- MEDIUM
CVSS 2.0
- Type
- Primary
- Base score
- 7.5
- Impact score
- 6.4
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
- nvd@nist.gov
- CWE-74
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BF47B6A7-F357-4074-B90D-8BEB0AB53DC0",
"versionEndIncluding": "1.9.0"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:redhat:openshift_service_mesh:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "AD6D2D18-27C3-44CF-804B-BE9270ED5077"
}
],
"operator": "OR"
}
]
}
]