Show vulnerabilities with patch / with exploit

Multiple vulnerabilities in Mutt



Published: 2020-07-01
Severity Medium
Patch available YES
Number of vulnerabilities 2
CVE ID CVE-2020-14093
CVE-2020-14154
CWE ID CWE-300
CWE-295
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Mutt
Client/Desktop applications / Office applications

Vendor Mutt.org

Security Advisory

1) Man-in-the-Middle (MitM) attack

Severity: Low

CVSSv3: 3.7 [CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-14093

CWE-ID: CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a Man-in-the-Middle (MitM) attack.

The vulnerability exists within the IMAP fcc/postpone when processing PREAUTH responses. A remote attacker with ability to intercept traffic can perform a Man-in-the-Middle (MitM) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Mutt: 1.14, 1.14.1, 1.14.2

CPE External links

http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00064.html
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00070.html
http://www.mutt.org
https://bugs.gentoo.org/728300
https://github.com/muttmua/mutt/commit/3e88866dc60b5fa6aaba6fd7c1710c12c1c3cd01
https://www.debian.org/security/2020/dsa-4707
https://www.debian.org/security/2020/dsa-4708

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open an attachment in an e-mail message.

Is there known malware, which exploits this vulnerability?

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

2) Improper Certificate Validation

Severity: Medium

CVSSv3: 5.7 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-14154

CWE-ID: CWE-295 - Improper Certificate Validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a man-in-the-Middle (MitM) attack.

The vulnerability exists due to improper certificate validation in mutt. The application proceeds with the connection eve if in response to a GnuTLS certificate prompt the user rejects an expired intermediate certificate.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Mutt: 1.14, 1.14.1, 1.14.2

CPE External links

http://lists.mutt.org/pipermail/mutt-announce/Week-of-Mon-20200608/000022.html
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00064.html
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00070.html
http://www.mutt.org
https://bugs.gentoo.org/728300

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open an attachment in an e-mail message.

Is there known malware, which exploits this vulnerability?

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