CVE-2020-15224 Information

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.

CVSS Vector

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Reference

https://github.com/openenclave/openenclave/blob/master/CHANGELOG.mdv0120 https://github.com/openenclave/openenclave/commit/bcac8e7acb514429fee9e0b5d0c7a0308fd4d76b https://github.com/openenclave/openenclave/security/advisories/GHSA-525h-wxcc-f66m

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

6.8