RCE in Discordrb Project
CVE-2023-28102
discordrb is an implementation of the Discord API using Ruby. In discordrb before commit `91e13043ffa` the `encoder.rb` file unsafely constructs a shell string using the file parameter, which can potentially leave clients of discordrb vulnerable to command injection. The library is not directly exploitable: the exploit requires that some client of the library calls the vulnerable method with user input. However, if unsafe input reaches the library method, then an attacker can execute arbitrary shell commands on the host machine. Full impact will depend on the permissions of the process running the `discordrb` library and will likely not be total system access. This issue has been addressed in code, but a new release of the `discordrb` gem has not been uploaded to rubygems. This issue is also tracked as `GHSL-2022-094`.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.026 (84.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000
Affected products
- Discordrb Project
- Shardlab Discordrb — versions <= 3.4.1
Weakness classification (CWE)
References
- securitylab.github.com/advisories/GHSL-2022-094_discordrb/ (Exploit, Third Party Advisory)
- github.com/shardlab/discordrb/commit/91e13043ffa89227c3fcdc3408f06da237d28c95 (Patch)
Frequently asked questions
- What is CVE-2023-28102?
- CVE-2023-28102 is a high-severity vulnerability in Discordrb Project, classified under OS Command Injection. CVSS score: 8.3/10. Published 2023-03-27.
- How severe is CVE-2023-28102?
- High severity. CVSS v3 base score is 8.3 out of 10.