Multiple vulnerabilities in Apple iOS and iPadOS



Published: 2021-01-27 | Updated: 2021-06-20
Risk Critical
Patch available YES
Number of vulnerabilities 3
CVE ID CVE-2021-1782
CVE-2021-1871
CVE-2021-1870
CWE ID CWE-362
CWE-840
Exploitation vector Network
Public exploit Vulnerability #1 is being exploited in the wild.
Vulnerability #2 is being exploited in the wild.
Vulnerability #3 is being exploited in the wild.
Vulnerable software
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Apple iOS
Operating systems & Components / Operating system

iPadOS
Operating systems & Components / Operating system

Vendor Apple Inc.

Security Advisory

1) Race condition

Risk: Critical

CVSSv3.1: 8.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1782

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to a race condition in the Kernel component. A remote attacker can use a malicious application and escalate privileges on the system.

Note: The vulnerability is being actively exploited in the wild.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Apple iOS: 14.0 18A373, 14.1 18A8395, 14.2 18B92, 14.3 18C66

iPadOS: 14.0 18A373, 14.1 18A8395, 14.2 18B92, 14.3 18C66

CPE External links

https://support.apple.com/en-us/HT212146

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.

2) Business Logic Errors

Risk: Critical

CVSSv3.1: 8.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1871

CWE-ID: CWE-840 - Business Logic Errors (3.0)

Exploit availability: No

Description

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

The vulnerability exists due to a logic issue in the WebKit component. A remote attacker can trick a victim to visit a malicious website and execute arbitrary code on the system.

Note: The vulnerability is being actively exploited in the wild.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Apple iOS: 14.0 18A373, 14.1 18A8395, 14.2 18B92, 14.3 18C66

iPadOS: 14.0 18A373, 14.1 18A8395, 14.2 18B92, 14.3 18C66

CPE External links

https://support.apple.com/en-us/HT212146

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.

3) Business Logic Errors

Risk: Critical

CVSSv3.1: 8.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1870

CWE-ID: CWE-840 - Business Logic Errors (3.0)

Exploit availability: No

Description

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

The vulnerability exists due to a logic issue in the WebKit component. A remote attacker can trick a victim to visit a malicious website and execute arbitrary code on the system.

Note: The vulnerability is being actively exploited in the wild.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Apple iOS: 14.0 18A373, 14.1 18A8395, 14.2 18B92, 14.3 18C66

iPadOS: 14.0 18A373, 14.1 18A8395, 14.2 18B92, 14.3 18C66

CPE External links

https://support.apple.com/en-us/HT212146

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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