CVE-2021-39242
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
An issue was discovered in HAProxy 2.2 before 2.2.16, 2.3 before 2.3.13, and 2.4 before 2.4.3. It can lead to a situation with an attacker-controlled HTTP Host header, because a mismatch between Host and authority is mishandled.
Overview
- CVE ID
- CVE-2021-39242
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-08-17T19:15:08
- Last Modified Date
- 2021-09-14T18:34:14
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:* | 1 | OR | 2.2.0 | 2.2.16 |
| cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:* | 1 | OR | 2.3.0 | 2.3.13 |
| cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:* | 1 | OR | 2.4.0 | 2.4.3 |
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://www.mail-archive.com/haproxy@formilux.org/msg41041.html | Exploit Third Party Advisory |
| https://git.haproxy.org/?p=haproxy.git;a=commit;h=b5d2b9e154d78e4075db163826c5e0f6d31b2ab1 | Mailing List Patch Vendor Advisory |
| https://www.debian.org/security/2021/dsa-4960 | Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4ALECUZDIMT5FYGP6V6PVSI4BKVZTZWN/ | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RPNY4WZIQUAUOCLIMUPC37AQWNXTWIQM/ | Mailing List Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-39242 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39242 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:05:21 | Added to TrackCVE | |||
| 2022-12-05 08:25:16 | 2021-08-17T19:15Z | 2021-08-17T19:15:08 | CVE Published Date | updated |
| 2022-12-05 08:25:16 | 2021-09-14T18:34:14 | CVE Modified Date | updated | |
| 2022-12-05 08:25:16 | Analyzed | Vulnerability Status | updated |