#VU26647 Improper Authorization in Elide - CVE-2020-5289
Vulnerability identifier: #VU26647
Vulnerability risk: Medium
CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2020-5289
CWE-ID:
CWE-285
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Elide
Web applications /
JS libraries
Vendor: Yahoo
Description
The vulnerability allows a remote attacker to bypass implemented authorization.
The vulnerability exists due to incorrect authorization checks. A remote authenticated attacker can "guess and check" the value of a model field they do not have access to assume they can read at least one other field in the model, then construct filter expressions for an inaccessible field to filter a collection and reconstruct the value of the inaccessible field.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Elide: 1.0.0.2 - 4.5.13
External links
https://github.com/yahoo/elide/pull/1236
https://github.com/yahoo/elide/pull/1236/commits/a985f0f9c448aabe70bc904337096399de4576dc
https://github.com/yahoo/elide/security/advisories/GHSA-2mxr-89gf-rc4v
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
