CVE-2019-9901
CVSS V2 High 7.5
CVSS V3 Critical 10
Description
Envoy 1.9.0 and before does not normalize HTTP URL paths. A remote attacker may craft a relative path, e.g., something/../admin, to bypass access control, e.g., a block on /admin. A backend server could then interpret the non-normalized path and provide an attacker access beyond the scope provided for by the access control policy.
Overview
- CVE ID
- CVE-2019-9901
- Assigner
- cve@mitre.org
- Vulnerability Status
- Modified
- Published Version
- 2019-04-25T16:29:01
- Last Modified Date
- 2020-08-24T17:37:01
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* | 1 | OR | 1.9.0 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 7.5
- Severity
- HIGH
- Exploitability Score
- 10
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 10
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 6
References
| Reference URL | Reference Tags |
|---|---|
| https://www.envoyproxy.io/docs/envoy/v1.9.1/intro/version_history | Release Notes Vendor Advisory |
| https://groups.google.com/forum/#!topic/envoy-announce/VoHfnDqZiAM | Patch Third Party Advisory |
| https://github.com/envoyproxy/envoy/issues/6435 | Mitigation Issue Tracking Third Party Advisory |
| https://github.com/envoyproxy/envoy/security/advisories/GHSA-xcx5-93pw-jw2w |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-9901 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9901 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:18:48 | Added to TrackCVE | |||
| 2022-12-03 20:05:24 | 2019-04-25T16:29Z | 2019-04-25T16:29:01 | CVE Published Date | updated |
| 2022-12-03 20:05:24 | 2020-08-24T17:37:01 | CVE Modified Date | updated | |
| 2022-12-03 20:05:24 | Modified | Vulnerability Status | updated |