CVE-2021-30823
MEDIUMCVSS 6.5/10EPSS 2.08%
Last modified
CVE-2021-30823 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A logic issue was addressed with improved restrictions. This issue is fixed in macOS Monterey 12.0.1, iOS 14.8 and iPadOS 14.8, tvOS 15, Safari 15, watchOS 8. EPSS estimates a 2.08% chance of exploitation in the next 30 days.
Description
A logic issue was addressed with improved restrictions. This issue is fixed in macOS Monterey 12.0.1, iOS 14.8 and iPadOS 14.8, tvOS 15, Safari 15, watchOS 8. An attacker in a privileged network position may be able to bypass HSTS.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Safari | < 15.0.0 |
| Apple | Ipados | < 14.8 |
| Apple | Iphone Os | < 14.8 |
| Apple | Macos | < 12.0.1 |
| Apple | Tvos | < 15.0 |
| Apple | Watchos | < 8.0 |
References
- http://www.openwall.com/lists/oss-security/2021/12/20/6Mailing List, Third Party Advisory
- https://support.apple.com/en-us/HT212807Vendor Advisory
- https://support.apple.com/en-us/HT212815Vendor Advisory
- https://support.apple.com/en-us/HT212816Vendor Advisory
- https://support.apple.com/en-us/HT212819Vendor Advisory
- https://support.apple.com/en-us/HT212869Vendor Advisory
- https://support.apple.com/kb/HT212953Vendor Advisory
- http://www.openwall.com/lists/oss-security/2021/12/20/6Mailing List, Third Party Advisory
- https://support.apple.com/en-us/HT212807Vendor Advisory
- https://support.apple.com/en-us/HT212815Vendor Advisory
- https://support.apple.com/en-us/HT212816Vendor Advisory
- https://support.apple.com/en-us/HT212819Vendor Advisory
- https://support.apple.com/en-us/HT212869Vendor Advisory
- https://support.apple.com/kb/HT212953Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-30823?
A logic issue was addressed with improved restrictions. This issue is fixed in macOS Monterey 12.0.1, iOS 14.8 and iPadOS 14.8, tvOS 15, Safari 15, watchOS 8. An attacker in a privileged network position may be able to bypass HSTS.
How severe is CVE-2021-30823?
CVE-2021-30823 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 2.08% probability of exploitation in the next 30 days.
How do I fix CVE-2021-30823?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-30823?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST