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Improper Link Resolution Before File Access ('Link Following')

CVE-2021-37969

Severity High
Score 7.8/10

Summary

Inappropriate implementation in Google Updater in Google Chrome on Windows prior to 94.0.4606.54 allowed a remote attacker to perform local privilege escalation via a crafted file.

  • LOW
  • LOCAL
  • HIGH
  • UNCHANGED
  • REQUIRED
  • NONE
  • HIGH
  • HIGH

CWE-59 - Improper Link Resolution Before File Access

'Improper link resolution before file access' occurs when software accesses a file resource but fails to verify that the file isn't a link or shortcut to another file. An attacker can potentially gain access to arbitrary files and from there the impact can vary, depending on the application, from sensitive data exposure to remote code execution.

Advisory Timeline

  • Published