NetSight
IP …
medium5.9

CVE-2018-18506

When proxy auto-detection is enabled, if a web server serves a Proxy Auto-Configuration (PAC) file or if a PAC file is loaded locally, this PAC file can specif…

Impact

When proxy auto-detection is enabled, if a web server serves a Proxy Auto-Configuration (PAC) file or if a PAC file is loaded locally, this PAC file can specify that requests to the localhost are to be sent through the proxy to another server. This behavior is disallowed by default when a proxy is manually configured, but when enabled could allow for attacks on services and tools that bind to the localhost for networked behavior if they are accessed through browsing. This vulnerability affects Firefox < 65.

Affected products

VendorProductAffected versions
MozillaFirefox
before 65.0
CanonicalUbuntu Linux
Versions 14.04, 16.04, 18.04, 18.10
DebianDebian Linux
Versions 8.0, 9.0
RedhatEnterprise Linux
Version 8.0
RedhatEnterprise Linux Desktop
Versions 6.0, 7.0
RedhatEnterprise Linux Eus
Versions 8.1, 8.2, 8.4, 8.6
RedhatEnterprise Linux Server
Versions 6.0, 7.0
RedhatEnterprise Linux Server Aus
Versions 7.6, 8.2, 8.4, 8.6
RedhatEnterprise Linux Server Eus
Version 7.6
RedhatEnterprise Linux Server Tus
Versions 7.6, 8.2, 8.4, 8.6
RedhatEnterprise Linux Workstation
Versions 6.0, 7.0
OpensuseLeap
Versions 15.0, 42.3

References