2021-30768 | Apple iOS/iPadOS dyld sandbox (HT212601)
|CVSS Meta Temp Score
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|CTI Interest Score
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A vulnerability classified as problematic has been found in Apple iOS and iPadOS up to 14.6 (Smartphone Operating System). This affects an unknown function of the component dyld. The manipulation with an unknown input leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-265. This is going to have an impact on confidentiality, integrity, and availability.
The weakness was disclosed 07/19/2021 by Linus Henze as HT212601 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is uniquely identified as CVE-2021-30768 since 04/13/2021. The exploitability is told to be easy. Attacking locally is a requirement. The successful exploitation requires a authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 07/27/2021). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:
A sandboxed process may be able to circumvent sandbox restrictions
Upgrading to version 14.7 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:
A logic issue was addressed with improved validation.
VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1
Status: Not defined
Upgrade: iOS/iPadOS 14.7
04/13/2021 CVE assigned
07/19/2021 +97 days Advisory disclosed
07/19/2021 +0 days Countermeasure disclosed
07/23/2021 +4 days VulDB entry created
07/27/2021 +4 days VulDB last updateVendor: https://www.apple.com/
Researcher: Linus Henze
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