Vulnerability identifier: #VU16656
Vulnerability risk: Low
CVSSv3.1: 5 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-200
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
YARA
Server applications /
Server solutions for antivurus protection
Vendor: VirusTotal
Description
The vulnerability allows a local attacker to gain access to potentially sensitive information.
The vulnerability exists due to the design of the YARA virtual machine (VM), which could allow an attacker to use OP_COUNT to read a DWORD value from any arbitrary memory address. A local attacker can execute a compiled rule file that submits malicious input and read data from any arbitrary address in memory, in libyara/exec.c.
Mitigation
Install update from vendor's website.
Vulnerable software versions
YARA: 3.8.1
External links
http://github.com/VirusTotal/yara/issues/999
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.