CVE-2017-16935
Ametys before 4.0.3 requires authentication only for URIs containing a /cms/ substring, which allows remote attackers to bypass intended access restrictions via a direct request to /plugins/core-ui/servercomm/messages.xml, as demonstrated by changing…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (7.66%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Ametys before 4.0.3 requires authentication only for URIs containing a /cms/ substring, which allows remote attackers to bypass intended access restrictions via a direct request to /plugins/core-ui/servercomm/messages.xml, as demonstrated by changing the admin password by obtaining account details via a users/search.json request, and then modifying the account via an editUser request.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 7.66% probability · 94th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- ametys/ametys
- Source
- cve@mitre.org
References
- https://blogs.securiteam.com/index.php/archives/3517Exploit, Technical Description, Third Party Advisory
- https://issues.ametys.org/browse/RUNTIME-2582Issue Tracking, Vendor Advisory
- https://blogs.securiteam.com/index.php/archives/3517Exploit, Technical Description, Third Party Advisory
- https://issues.ametys.org/browse/RUNTIME-2582Issue Tracking, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.