CVE-2020-15224 Socket syscalls can leak enclave memory contents in Open Enclave
A malicious host can read privileged enclave memory via socket syscalls, exposing confidential data to attackers with local access.
- 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-2020-15224?
CVE-2020-15224 is a medium-severity vulnerability in openenclave, published on 14 Oct 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In Open Enclave before version 0.12.0, an information disclosure vulnerability exists when an enclave application using the syscalls provided by the sockets.edl is loaded by a malicious host application. An attacker who successfully exploited the vulnerability could read privileged data from the enclave heap across trust boundaries. To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted application. The vulnerability would not allow an attacker to elevate user rights directly, but it could be used to obtain information otherwise considered confidential in an enclave, which could be used in further compromises. The issue has been addressed in version 0.12.0 and the current master branch. Users will need to to recompile their applications against the patched libraries to be protected from this vulnerability.
Weakness: CWE-552
Which versions are affected by CVE-2020-15224?
It affects 1 product.
Products include Openenclave Openenclave.
How do I fix CVE-2020-15224?
No fix has been published for CVE-2020-15224 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-15224 being exploited?
There is no known exploitation of CVE-2020-15224 in the wild and no public exploit code.
Other vulnerabilities in openenclave
Sources
Also known as GHSA-525h-wxcc-f66m.