Remote code execution in Apple watchOS



| Updated: 2021-12-26
Risk Critical
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-30860
CWE-ID CWE-190
Exploitation vector Network
Public exploit This vulnerability is being exploited in the wild.
Vulnerable software
 watchOS
Operating systems & Components / Operating system

Vendor Apple Inc.

Security Bulletin

This security bulletin contains one critical risk vulnerability.

1) Integer overflow

EUVDB-ID: #VU56067

Risk: Critical

CVSSv4.0: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red]

CVE-ID: CVE-2021-30860

CWE-ID: CWE-190 - Integer overflow

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow when processing PDF files within the CoreGraphics component. A remote attacker can trick the victim to open a specially crafted PDF file, trigger integer overflow and execute arbitrary code on the target system.

Note, the vulnerability is being active exploited in-the-wild via the FORCEDENTRY tool against Bahraini activists.

Mitigation

Install update from vendor's website.

Vulnerable software versions

watchOS: 7.0 18R382 - 7.6.1 18U70

CPE2.3 External links

https://support.apple.com/en-us/HT212806


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.



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