CVE-2023-33965 Brook's tproxy server is vulnerable to a drive-by command injection.
An attacker can execute arbitrary commands on the local tproxy service by tricking a victim into visiting a malicious web page.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2023-33965?
CVE-2023-33965 is a critical command injection vulnerability in txthinking brook, published on 1 Jun 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Brook is a cross-platform programmable network tool. The `tproxy` server is vulnerable to a drive-by command injection. An attacker may fool a victim into visiting a malicious web page which will trigger requests to the local `tproxy` service leading to remote code execution. A patch is available in version 20230606.
Weakness: CWE-78
Which versions are affected by CVE-2023-33965?
2 open source packages ship an affected version, including github.com/txthinking/brook. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/txthinking/brook Go | All versions | 20230606 |
github.com/txthinking/brook Go | All versions | 20230606 |
Products include Txthinking Brook.
How do I fix CVE-2023-33965?
Upgrade github.com/txthinking/brook to 20230606 or later.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2023-33965 being exploited?
There is no known exploitation of CVE-2023-33965 in the wild and no public exploit code.
Sources
Also known as GHSA-vfrj-fv6p-3cpf.