CVE-2017-15643 Code injection in n/a

High 7.4 Published Updated

A man-in-the-middle attacker can achieve remote code execution on Windows machines running IKARUS Anti Virus by intercepting and modifying cleartext HTTP update traffic.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2017-15643?

CVE-2017-15643 is a high-severity code injection vulnerability in n/a, published on 19 Oct 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An active network attacker (MiTM) can achieve remote code execution on a machine that runs IKARUS Anti Virus 2.16.7. IKARUS AV for Windows uses cleartext HTTP for updates along with a CRC32 checksum and an update value for verification of the downloaded files. The attacker first forces the client to initiate an update transaction by modifying an update field within an HTTP 200 response, so that it refers to a nonexistent update. The attacker then modifies the HTTP 404 response so that it specifies a successfully found update, with a Trojan horse executable file (e.g., guardxup.exe) and the correct CRC32 checksum for that file.

Weakness: CWE-444

Which versions are affected by CVE-2017-15643?

It affects 1 product.

Products include Ikarussecurity Ikarus Antivirus.

How do I fix CVE-2017-15643?

No fix has been published for CVE-2017-15643 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2017-15643 being exploited?

There is no known exploitation of CVE-2017-15643 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-68qc-x6c7-f66c.

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