CVE-2021-30888

Description

An information leakage issue was addressed. This issue is fixed in iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, tvOS 15.1, watchOS 8.1. A malicious website using Content Security Policy reports may be able to leak information via redirect behavior .

CVSS Metrics

• v3.1•HIGH•Score: 7.4CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
• v2.0•MEDIUM•Score: 4.3AV:N/AC:M/Au:N/C:P/I:N/A:N

EPSS Trends

Current EPSS score: 0.22%• Percentile: 44%

Techniques & Countermeasures

• CWE-601•URL Redirection to Untrusted Site ('Open Redirect')

  The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.

Affected Systems

• apple•ios and ipados

  ≥ unspecified, < 15.1 | ≥ unspecified, < 14.8

• apple•ipad_os

  < 14.8.1

• apple•ipados

  15.0

• apple•iphone_os

  < 14.8.1 | 15.0

• apple•macos

  < 12.0.1 | ≥ unspecified, < 12.0 | ≥ unspecified, < 8.1 | ≥ unspecified, < 15.1

• apple•tvos

  < 15.1

• apple•watchos

  < 8.1

References (6)

• https://support.apple.com/en-us/HT212869
• https://support.apple.com/en-us/HT212867
• https://support.apple.com/en-us/HT212868
• https://support.apple.com/en-us/HT212874
• https://support.apple.com/en-us/HT212876
• http://www.openwall.com/lists/oss-security/2021/12/20/6