Improper Certificate Validation in Debian Linux

1) Improper Certificate Validation

EUVDB-ID: #VU35075

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2010-4532

CWE-ID: CWE-295 - Improper Certificate Validation

Exploit availability: No

Description

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

offlineimap before 6.3.2 does not check for SSL server certificate validation when "ssl = yes" option is specified which can allow man-in-the-middle attacks.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Debian Linux: 8.0 - 9.0

CPE2.3

• cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
• cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

External links

https://access.redhat.com/security/cve/cve-2010-4532
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=603450
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2010-4532
https://security-tracker.debian.org/tracker/CVE-2010-4532
https://www.openwall.com/lists/oss-security/2010/12/23/2

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.