CVE-2017-18122
CVSS V2 Medium 6.8
CVSS V3 High 8.1
Description
A signature-validation bypass issue was discovered in SimpleSAMLphp through 1.14.16. A SimpleSAMLphp Service Provider using SAML 1.1 will regard as valid any unsigned SAML response containing more than one signed assertion, provided that the signature of at least one of the assertions is valid. Attributes contained in all the assertions received will be merged and the entityID of the first assertion received will be used, allowing an attacker to impersonate any user of any IdP given an assertion signed by the targeted IdP.
Overview
- CVE ID
- CVE-2017-18122
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2018-02-02T15:29:00
- Last Modified Date
- 2019-05-13T17:40:07
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:simplesamlphp:simplesamlphp:*:*:*:*:*:*:*:* | 1 | OR | 1.14.16 | |
| cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 6.8
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 8.1
- Base Severity
- HIGH
- Exploitability Score
- 2.2
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://simplesamlphp.org/security/201710-01 | Patch Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2018/02/msg00008.html | Mailing List Third Party Advisory |
| https://www.debian.org/security/2018/dsa-4127 | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2017-18122 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18122 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:52:59 | Added to TrackCVE | |||
| 2022-12-03 01:42:41 | 2018-02-02T15:29Z | 2018-02-02T15:29:00 | CVE Published Date | updated |
| 2022-12-03 01:42:41 | 2019-05-13T17:40:07 | CVE Modified Date | updated | |
| 2022-12-03 01:42:41 | Analyzed | Vulnerability Status | updated |