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CVE-2017-7540

Good to know:

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Date: July 21, 2017

rubygem-safemode, as used in Foreman, versions 1.3.2 and earlier are vulnerable to bypassing safe mode limitations via special Ruby syntax. This can lead to deletion of objects for which the user does not have delete permissions or possibly to privilege escalation.

Language: Ruby

Severity Score

Related Resources (6)

https://github.com/svenfuchs/safemode
https://nvd.nist.gov/vuln/detail/CVE-2017-7540
https://github.com/advisories/GHSA-8474-rc7c-wrhp
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/safemode/CVE-2017-7540.yml
https://github.com/svenfuchs/safemode/pull/23
https://www.mend.io/vulnerability-database/CVE-2017-7540

Severity Score

Weakness Type (CWE)

Incomplete List of Disallowed Inputs

CWE-184

Permissions, Privileges, and Access Control

CWE-264

Insufficient Information

NVD-CWE-noinfo

Top Fix

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CVSS v3.1

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

CVSS v2

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

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