CVE-2020-28045 Security feature bypass in n/a
Attackers can bypass code signing restrictions in ProlinOS by loading unsigned shared libraries via LD_PRELOAD, enabling arbitrary code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-28045?
CVE-2020-28045 is a high-severity vulnerability in n/a, published on 1 Nov 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An unsigned-library issue was discovered in ProlinOS through 2.4.161.8859R. This OS requires installed applications and all system binaries to be signed either by the manufacturer or by the Point Of Sale application developer and distributor. The signature is a 2048-byte RSA signature verified in the kernel prior to ELF execution. Shared libraries, however, do not need to be signed, and they are not verified. An attacker may execute a custom binary by compiling it as a shared object and loading it via LD_PRELOAD.
Weakness: CWE-347
Which versions are affected by CVE-2020-28045?
It affects 1 product.
Products include Pax Prolinos.
How do I fix CVE-2020-28045?
No fix has been published for CVE-2020-28045 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-28045 being exploited?
There is no known exploitation of CVE-2020-28045 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-63pw-vhjp-v4v8.