PT-2021-5288 · Apple · Watchos+4

R3Df09 + 3 · Published 2021-04-26 · Updated 2022-10-18 · CVE-2021-1815

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions macOS versions prior to 11.3 iOS versions prior to 14.5 iPadOS versions prior to 14.5 watchOS versions prior to 7.4 tvOS versions prior to 14.5

Description A parsing issue in the handling of directory paths was addressed with improved path validation. This issue allows a local user to modify protected parts of the file system, potentially leading to privilege escalation. The vulnerability is related to insufficient validation of directory path names with restricted access.

Recommendations For macOS versions prior to 11.3, update to macOS Big Sur 11.3 to resolve the issue. For iOS versions prior to 14.5, update to iOS 14.5 to resolve the issue. For iPadOS versions prior to 14.5, update to iPadOS 14.5 to resolve the issue. For watchOS versions prior to 7.4, update to watchOS 7.4 to resolve the issue. For tvOS versions prior to 14.5, update to tvOS 14.5 to resolve the issue.

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

BDU:2021-06114

CVE-2021-1815

Affected Products

Apple Macos

Ios

Ipados

Tvos

Watchos

References · 11

• https://support.apple.com/en-us/HT212325 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1815 · Security Note
• https://bdu.fstec.ru/vul/2021-06114 · Security Note
• https://support.apple.com/en-us/HT212323 · Vendor Advisory
• https://support.apple.com/en-us/HT212324 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-1815 · Vendor Advisory
• https://support.apple.com/en-us/HT212317 · Vendor Advisory
• https://github.com/sslab-gatech/pwn2own2020 · Note
• https://support.apple.com/en-us/103126 · Note
• https://t.me/cybersecuritytechnologies/3314 · Telegram Post
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1815 · Note