Overview
- Description
- HTTPRedirect.php in the saml2 library in SimpleSAMLphp before 1.15.4 has an incorrect check of return values in the signature validation utilities, allowing an attacker to get invalid signatures accepted as valid by forcing an error during validation. This occurs because of a dependency on PHP functionality that interprets a -1 error code as a true boolean value.
- Source
- cve@mitre.org
- NVD status
- Modified
Risk scores
CVSS 3.0
- Type
- Primary
- Base score
- 8.1
- Impact score
- 5.9
- Exploitability score
- 2.2
- Vector string
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 6.8
- Impact score
- 6.4
- Exploitability score
- 8.6
- Vector string
- AV:N/AC:M/Au:N/C:P/I:P/A:P
Weaknesses
- nvd@nist.gov
- CWE-347
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:simplesamlphp:simplesamlphp:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "498D34C0-50B9-47A5-8047-9D99920869BF",
"versionEndExcluding": "1.15.4"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:simplesamlphp:saml2:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D6F0BB9A-3F91-4F50-968B-AF9CBA3AEC8B",
"versionEndExcluding": "1.10.6",
"versionStartIncluding": "1.0.0"
},
{
"criteria": "cpe:2.3:a:simplesamlphp:saml2:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B2FCE1FF-DCBE-4FA0-A567-95846BED042F",
"versionEndExcluding": "2.3.8",
"versionStartIncluding": "2.0.0"
},
{
"criteria": "cpe:2.3:a:simplesamlphp:saml2:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DF9F3B50-6531-4F9F-BB8C-B84ADB858C62",
"versionEndExcluding": "3.1.4",
"versionStartIncluding": "3.0.0"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "16F59A04-14CF-49E2-9973-645477EA09DA"
}
],
"operator": "OR"
}
]
}
]