Description
CUPS before 1.1.21rc1 treats a Location directive in cupsd.conf as case sensitive, which allows attackers to bypass intended ACLs via a printer name containing uppercase or lowercase letters that are different from what is specified in the directive.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- Apple / cups1.1.21
- Apple / cups1.1.21 – 1.1.21
- Canonical / Ubuntu Linux4.10 – 4.10
References
- VENDOR_ADVISORYhttp://www.novell.com/linux/security/advisories/2005_18_sr.html
- MISChttp://www.cups.org/str.php?L700
- MISChttp://www.redhat.com/support/errata/RHSA-2005-571.html
- MISChttps://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=163274
- VENDOR_ADVISORYhttp://www.ubuntu.com/usn/usn-185-1
- MISChttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9940
- MISChttps://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=162405