Man-in-the-middle attack in SecureDrop - #VU8954

 

Man-in-the-middle attack in SecureDrop - #VU8954

Published: October 26, 2017


Vulnerability identifier: #VU8954
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-300
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to conduct man-in-the-middle attack.

The weakness exists due to improper verification of cryptographic signatures while installation of `tor`, `ntp`, and the `Tor keyring`packages during initial provisioning of the SecureDrop servers. A remote attacker can use man-in-the-middle techniques to connect to apt server and execute arbitrary code on the SecureDrop servers.

Affected software

SecureDrop

Remediation

Update to version 0.4.4.


External References

Related Security Bulletins