Vulnerability identifier: #VU42430

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2013-5182

CWE-ID: CWE-310

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
macOS
Operating systems & Components / Operating system

Vendor: Apple Inc.

Description

The vulnerability allows a remote non-authenticated attacker to manipulate data.

Mail in Apple Mac OS X before 10.9 allows remote attackers to spoof the existence of a cryptographic signature for an e-mail message by using the multipart/signed content type within an unsigned message.

Mitigation
Install update from vendor's website.

Vulnerable software versions

macOS: 10.8.0 - 10.8.5

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External links
http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html

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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?

No. We are not aware of malware exploiting this vulnerability.