CVE-2020-15663 (GCVE-0-2020-15663)

Vulnerability from cvelistv5 – Published: 2020-10-01 18:43 – Updated: 2024-08-04 13:22
VLAI
Summary
If Firefox is installed to a user-writable directory, the Mozilla Maintenance Service would execute updater.exe from the install location with system privileges. Although the Mozilla Maintenance Service does ensure that updater.exe is signed by Mozilla, the version could have been rolled back to a previous version which would have allowed exploitation of an older bug and arbitrary code execution with System Privileges. *Note: This issue only affected Windows operating systems. Other operating systems are unaffected.*. This vulnerability affects Firefox < 80, Thunderbird < 78.2, Thunderbird < 68.12, Firefox ESR < 68.12, and Firefox ESR < 78.2.
Severity
No CVSS data available.
CWE
  • Downgrade attack on the Mozilla Maintenance Service could have resulted in escalation of privilege
Assigner
References
Impacted products
Vendor Product Version
Mozilla Firefox Affected: unspecified , < 80 (custom)
Create a notification for this product.
Mozilla Thunderbird Affected: unspecified , < 78.2 (custom)
Affected: unspecified , < 68.12 (custom)
Create a notification for this product.
Mozilla Firefox ESR Affected: unspecified , < 68.12 (custom)
Affected: unspecified , < 78.2 (custom)
Create a notification for this product.
Show details on NVD website
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.