Vulnerability Details : CVE-2018-7644
The XmlSecLibs library as used in the saml2 library in SimpleSAMLphp before 1.15.3 incorrectly verifies signatures on SAML assertions, allowing a remote attacker to construct a crafted SAML assertion on behalf of an Identity Provider that would pass as cryptographically valid, thereby allowing them to impersonate a user from that Identity Provider, aka a key confusion issue.
Products affected by CVE-2018-7644
- cpe:2.3:a:simplesamlphp:simplesamlphp:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-7644
0.19%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 57 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-7644
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2018-7644
-
The product does not verify, or incorrectly verifies, the cryptographic signature for data.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-7644
-
https://simplesamlphp.org/security/201802-01
SimpleSAMLphpVendor Advisory
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