Input validation error in PyBitmessage - CVE-2018-1000070
Published: March 13, 2018 / Updated: August 8, 2020
Vulnerability identifier: #VU37440
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2018-1000070
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Bitmessage
Affected software:
PyBitmessage
PyBitmessage
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
Bitmessage PyBitmessage version v0.6.2 (and introduced in or after commit 8ce72d8d2d25973b7064b1cf76a6b0b3d62f0ba0) contains a Eval injection vulnerability in main program, file src/messagetypes/__init__.py function constructObject that can result in Code Execution. This attack appears to be exploitable via remote attacker using a malformed message which must be processed by the victim - e.g. arrive from any sender on bitmessage network. This vulnerability appears to have been fixed in v0.6.3.
How to mitigate CVE-2018-1000070
Install update from vendor's website.