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ubuntucveUbuntu.comUB:CVE-2018-7644
HistoryMar 05, 2018 - 12:00 a.m.

CVE-2018-7644

2018-03-0500:00:00
ubuntu.com
ubuntu.com
4

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

0.002 Low

EPSS

Percentile

53.2%

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.

OSVersionArchitecturePackageVersionFilename
ubuntu16.04noarchsimplesamlphp< anyUNKNOWN

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

0.002 Low

EPSS

Percentile

53.2%