CVE-2019-17020

Current Description

If an XML file is served with a Content Security Policy and the XML file includes an XSL stylesheet, the Content Security Policy will not be applied to the contents of the XSL stylesheet. If the XSL sheet e.g. includes JavaScript, it would bypass any of the restrictions of the Content Security Policy applied to the XML document. This vulnerability affects Firefox < 72.

Basic Data

PublishedJanuary 08, 2020
Last ModifiedJanuary 13, 2020
Assignercve@mitre.org
Data TypeCVE
Data FormatMITRE
Data Version4.0
Problem TypeCWE-20
CVE Data Version4.0

Base Metric V2

CVSS 2 - Version2.0
CVSS 2 - Vector StringAV:N/AC:M/Au:N/C:N/I:P/A:N
CVSS 2 - Access VectorNETWORK
CVSS 2 - Access ComplexityMEDIUM
CVSS 2 - AuthenticationNONE
CVSS 2 - Confidentiality ImpactNONE
CVSS 2 - Availability ImpactNONE
CVSS 2 - Base Score4.3
SeverityMEDIUM
Exploitability Score8.6
Impact Score2.9
Obtain All Privilegefalse
Obtain User Privilegefalse
Obtain Other Privilegefalse

Base Metric V3

No data provided.

Configurations

  • OR - Configuration 1
    Cpe VersionPartVendorProductVersionUpdateEditionLanguageSW EditionTarget SWTarget HWOtherVersion Start IncludingVersion End IncludingVersion Start ExcludingVersion End Excluding
    2.3ApplicationMozillaFirefox********72.0
  • OR - Configuration 2
    Cpe VersionPartVendorProductVersionUpdateEditionLanguageSW EditionTarget SWTarget HWOtherVersion Start IncludingVersion End IncludingVersion Start ExcludingVersion End Excluding
    2.3OSCanonicalUbuntu Linux19.10*******
    2.3OSCanonicalUbuntu Linux19.04*******
    2.3OSCanonicalUbuntu Linux18.04***lts***
    2.3OSCanonicalUbuntu Linux16.04***lts***

Vulnerable Software List

VendorProductVersions
Mozilla Firefox *
Canonical Ubuntu Linux 16.04, 18.04, 19.04, 19.10

References

NameSourceURLTags
https://www.mozilla.org/security/advisories/mfsa2020-01/CONFIRMhttps://www.mozilla.org/security/advisories/mfsa2020-01/Vendor Advisory Third Party Advisory Permissions Required
USN-4234-1UBUNTUhttps://usn.ubuntu.com/4234-1/
https://bugzilla.mozilla.org/show_bug.cgi?id=1597645MISChttps://bugzilla.mozilla.org/show_bug.cgi?id=1597645