CVE-2023-30575 Apache Guacamole: Incorrect calculation of Guacamole protocol element lengths
Attackers can inject malicious instructions during the handshake due to incorrect length calculations, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-30575?
CVE-2023-30575 is a medium-severity code injection vulnerability in Apache Guacamole, published on 7 Jun 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Apache Guacamole 1.5.1 and older may incorrectly calculate the lengths of instruction elements sent during the Guacamole protocol handshake, potentially allowing an attacker to inject Guacamole instructions during the handshake through specially-crafted data.
Weakness: CWE-131
Which versions are affected by CVE-2023-30575?
2 open source packages ship an affected version, including guacamole and guacamole-server. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
guacamole Bitnami | All versions | 1.5.2 |
guacamole-server Bitnami | All versions | 1.5.2 |
Products include Apache Guacamole.
How do I fix CVE-2023-30575?
Upgrade guacamole to 1.5.2 or later.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2023-30575 being exploited?
There is no known exploitation of CVE-2023-30575 in the wild and no public exploit code.
Other vulnerabilities in Apache Guacamole
- CVE-2021-43999 Improper validation of SAML responses
- CVE-2017-3158 Apache Guacamole Race Condition vulnerability
- CVE-2023-43826 Apache Guacamole: Integer overflow in handling of VNC image buffers
- CVE-2019-19603 Null dereference in n/a
- CVE-2018-1340 Missing Encryption of Sensitive Data in Apache Guacamole
Sources
Also known as BIT-guacamole-2023-30575, BIT-guacamole-server-2023-30575, GHSA-jcgp-rv79-q77m, UBUNTU-CVE-2023-30575.