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CVE-2018-20857

Good to know:

Date: July 26, 2019

Zendesk Samlr before 2.6.2 allows an XML nodes comment attack such as a name_id node with user@example.com followed by . and then the attacker's domain name.

Language: Ruby

Severity Score

7.5

Related Resources (6)

Url: https://nvd.nist.gov/vuln/detail/CVE-2018-20857

Url: https://github.com/zendesk/samlr/pull/29

Url: https://github.com/zendesk/samlr/compare/v2.6.1...v2.6.2

Url: https://github.com/rubysec/ruby-advisory-db/blob/master/gems/samlr/CVE-2018-20857.yml

Url: https://github.com/zendesk/samlr

Url: https://www.mend.io/vulnerability-database/CVE-2018-20857

Severity Score

7.5

Weakness Type (CWE)

Input Validation

CWE-20

Top Fix

Upgrade Version

Upgrade to version 2.6.2

CVSS v3.1

Base Score:	7.5
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	HIGH
Availability (A):	NONE

CVSS v2

Base Score:	5.0
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	PARTIAL
Availability (A):	NONE
Additional information:

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