A buffer overflow was addressed with improved size validation. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1, watchOS 6.1.2, iTunes for Windows 12.10.4, iCloud for Windows 11.0, iCloud for Windows 7.17. Processing maliciously crafted XML may lead to an unexpected application termination or arbitrary code execution.

According to its version, the iCloud application installed on the remote Windows host is 7.x prior to 7.17. It is, therefore, affected by multiple vulnerabilities:

  - An arbitrary code execution vulnerability exist with in the WebKit due to multiple memory     corruption issues. An unauthenticated, remote attacker can exploit this by processing maliciously crafted     web content that may lead to arbitrary code execution. (CVE-2020-3825, CVE-2020-3865, CVE-2020-3868)     
  - An arbitrary code execution vulnerability exist with in the WebKit due to out-of-bounds read     issues. An unauthenticated, remote attacker can exploit this by processing a maliciously crafted image     that may lead to arbitrary code execution. (CVE-2020-3826)   

  - An arbitrary code execution vulnerability exist with in the WebKit due to buffer overflow     issues. An unauthenticated, remote attacker can exploit this by processing maliciously crafted XML file     that may lead to an unexpected application termination or arbitrary code execution. (CVE-2020-3846)

  - An arbitrary code execution vulnerability exist with in the WebKit due to denial of service     issues. A malicious website may be able to cause a denial of service. (CVE-2020-3862)

  - An arbitrary code execution vulnerability exist with in the WebKit due to logic issues.     An unauthenticated, remote attacker can exploit this by processing maliciously crafted web content that     may lead to universal cross site scripting(css). (CVE-2020-3867)

According to its version, the iCloud application installed on the remote Windows host is 10.x prior to 10.9.2. It is, therefore, affected by multiple vulnerabilities:

  - An arbitrary code execution vulnerability exist with in the WebKit due to multiple memory     corruption issues. An unauthenticated, remote attacker can exploit this by processing maliciously crafted     web content that may lead to arbitrary code execution. (CVE-2020-3825, CVE-2020-3865, CVE-2020-3868)     
  - An arbitrary code execution vulnerability exist with in the WebKit due to out-of-bounds read     issues. An unauthenticated, remote attacker can exploit this by processing a maliciously crafted image     that may lead to arbitrary code execution. (CVE-2020-3826)

  - An arbitrary code execution vulnerability exist with in the WebKit due to buffer overflow     issues. An unauthenticated, remote attacker can exploit this by processing maliciously crafted XML file     that may lead to an unexpected application termination or arbitrary code execution. (CVE-2020-3846)

  - An arbitrary code execution vulnerability exist with in the WebKit due to denial of service     issues. A malicious website may be able to cause a denial of service. (CVE-2020-3862)

  - An arbitrary code execution vulnerability exist with in the WebKit due to logic issues.     An unauthenticated, remote attacker can exploit this by processing maliciously crafted web content that     may lead to universal cross site scripting(css). (CVE-2020-3867)

The version of Apple iTunes installed on the remote Windows host is prior to 12.10.4. It is, therefore, affected by multiple vulnerabilities as referenced in the HT210923 advisory. Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote host is running a version of macOS / Mac OS X that is 10.15.x prior to 10.15.3, 10.13.x prior to 10.13.6, 10.14.x prior to 10.14.6. It is, therefore, affected by multiple vulnerabilities:

  - In PHP versions 7.1.x below 7.1.33, 7.2.x below 7.2.24     and 7.3.x below 7.3.11 in certain configurations of FPM     setup it is possible to cause FPM module to write past     allocated buffers into the space reserved for FCGI     protocol data, thus opening the possibility of remote     code execution. (CVE-2019-11043)

  - An arbitrary code exution vulnerability exists      due to a misconfiguration. An authenticated, local attacker     can exploit this to execute arbitrary code on the remote host.
    (CVE-2019-18634)

  - An arbitrary code exution vulnerability exists      due to the ability to process a maliciously crafted image.     An unauthenticated, remote attacker can exploit this to     execute arbitrary code on the remote host.
    (CVE-2020-3826 CVE-2020-3827 CVE-2020-3870 CVE-2020-3878)

  - A privilege escalation vulnerability exists in due to an out-of-bounds read issue.     An unauthenticated, remote attacker can exploit this, to gain elevated     access to the system. (CVE-2020-3829)

  - An arbitrary file write vulnerability exists in the handling of symlinks.     A malicious program crafted by an attacker can exploit this to overwrite arbitrary files on the remote host.
    (CVE-2020-3830 CVE-2020-3835 CVE-2020-3855)

  - An information disclosure vulnerability exists in the access control handling of applications.     A malicious application crafted by attacker can exploit this to disclose the kernel memory layout.
    (CVE-2020-3836)

  - An arbitrary code exution vulnerability exists      due to a memory corruption issue. A malicious application     crafted by a remote attacker may be able to execute arbitrary code     with kernel privileges on the remote host.
    (CVE-2020-3837  CVE-2020-3842 CVE-2020-3871)

  - An arbitrary code exution vulnerability exists      due to a permissions logic flaw.  A malicious application     crafted by a remote attacker may be able to execute arbitrary code     with system privileges on the remote host.
    (CVE-2019-18634 CVE-2020-3854 CVE-2020-3845 CVE-2020-3853 CVE-2020-3857)

  - An information disclosure vulnerability exists in the input sanitization logic.     A malicious application crafted by attacker can exploit this to read restricted memory.
    (CVE-2020-3839 CVE-2020-3847)

  - An arbitrary code exution vulnerability exists      due to the loading of a maliciously crafted racoon configuration file.     An authenticated, local attacker can exploit this to execute arbitrary code on the remote host.
    (CVE-2020-3840)

  - A denial of service (DoS) vulnerability exists due to a memory corruption issue. An     unauthenticated, remote attacker can exploit this issue, via malicious input, to cause the     system to crash, stop responding, or corrupt the kernel memory. (CVE-2020-3843)

  - An arbitrary code exution vulnerability exists      due to either a buffer overflow or out-of-bounds read issue. An authenticated, local attacker     can exploit this to execute arbitrary code on the remote host or     cause an unexpected application to terminate.
    (CVE-2020-3846 CVE-2020-3848 CVE-2020-3849 CVE-2020-3850 CVE-2020-3877)

  - A memory corruption vulnerability exists due to a malicious crafted string. An     unauthenticated, remote attacker can exploit this issue, via malicious input, to cause the     corruption of the heap memory. (CVE-2020-3856)

  - An security bypass vulnerability exists in the handling of files from an attacker controlled NFS mount.     A remote attacker with local access could search for and open a file from an attacker controlled NFS mount     and bypass Gatekeeper Security features. (CVE-2020-3866)

  - An information disclosure vulnerability exists where an application     can read restricted memory.  A local, authorized attacker can exploit this to read restricted memory.
    (CVE-2020-3872 CVE-2020-3875)

Note that Nessus has not tested for this issue but has instead relied only on the operating system's self-reported version number.

ID	Name	Product	Family	Severity
138077	Apple iCloud 7.x < 7.17 Multiple Vulnerabilities	Nessus	Windows	high
138076	Apple iCloud 10.x < 10.9.2 Multiple Vulnerabilities	Nessus	Windows	high
134222	Apple iTunes < 12.10.4 Multiple Vulnerabilities (credentialed check)	Nessus	Windows	high
134221	Apple iTunes < 12.10.4 Multiple Vulnerabilities (uncredentialed check)	Nessus	Peer-To-Peer File Sharing	high
133531	macOS 10.15.x < 10.15.3 / 10.14.x < 10.14.6 / 10.13.x < 10.13.6	Nessus	MacOS X Local Security Checks	critical

Detections

Analytics

CVE-2020-3846

high

Tenable Plugins

high

high

high

high

critical