high
8.1
CWE
20
Advisory Published
CVE Published
Updated

CVE-2017-7807: Input Validation

First published: Tue Aug 08 2017(Updated: )

A mechanism that uses AppCache to hijack a URL in a domain using fallback by serving the files from a sub-path on the domain. This has been addressed by requiring fallback files be inside the manifest directory.

Credit: security@mozilla.org

Affected SoftwareAffected VersionHow to fix
debian/firefox
118.0.2-1
debian/firefox-esr
91.12.0esr-1~deb10u1
115.3.1esr-1~deb10u1
102.15.0esr-1~deb11u1
115.3.1esr-1~deb11u1
102.15.1esr-1~deb12u1
115.3.0esr-1~deb12u1
115.3.0esr-1
Thunderbird<52.3
52.3
Debian=8.0
Debian=9.0
Red Hat Enterprise Linux=6.0
Red Hat Enterprise Linux=7.0
Red Hat Enterprise Linux Desktop=6.0
Red Hat Enterprise Linux Desktop=7.0
Red Hat Enterprise Linux Server=6.0
Red Hat Enterprise Linux Server=7.0
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Server=7.5
Red Hat Enterprise Linux Workstation=6.0
Red Hat Enterprise Linux Workstation=7.0
Firefox<55.0
Firefox ESR<52.3.0
Thunderbird<52.3.0
Firefox<55
55
Firefox ESR<52.3
52.3

Remedy

https://bugzilla.mozilla.org/show_bug.cgi?id=1376459

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of CVE-2017-7807?

    CVE-2017-7807 has a moderate severity level due to its ability to hijack URLs using AppCache.

  • Which products are affected by CVE-2017-7807?

    CVE-2017-7807 affects multiple products including Mozilla Firefox, Firefox ESR, and Thunderbird.

  • How do I fix CVE-2017-7807?

    To fix CVE-2017-7807, update to the latest version of Firefox, Firefox ESR, or Thunderbird as specified in the security advisories.

  • What is the exploit mechanism for CVE-2017-7807?

    The exploit mechanism for CVE-2017-7807 relies on AppCache to hijack a URL by serving fallback files from an unauthorized sub-path.

  • What versions of Firefox are vulnerable to CVE-2017-7807?

    Versions of Firefox up to 55.0 are vulnerable to CVE-2017-7807.

Company

Resources

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