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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 20%
VendorProductVersion
simplesamlphpsimplesamlphp
𝑥
< 1.15.3
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
simplesamlphp
bullseye
1.19.0-1
fixed
sid
1.19.7-1
fixed
trixie
1.19.7-1
fixed
bookworm
1.19.7-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
simplesamlphp
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
not-affected
groovy
not-affected
focal
not-affected
eoan
not-affected
disco
not-affected
cosmic
ignored
bionic
not-affected
artful
ignored
xenial
needed
trusty
dne
Common Weakness Enumeration
References
https://simplesamlphp.org/security/201802-01
https://simplesamlphp.org/security/201802-01