A door-unlocking issue was discovered on Software House iStar Ultra devices through 6.5.2.20569 when used in conjunction with the IP-ACM Ethernet Door Module. The communications between the IP-ACM and the iStar Ultra is encrypted using a fixed AES key and IV. Each message is encrypted in CBC mode and restarts with the fixed IV, leading to replay attacks of entire messages. There is no authentication of messages beyond the use of the fixed AES key, so message forgery is also possible.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2017-12-31T02:00:00
Updated: 2024-08-05T20:59:17.650Z
Reserved: 2017-12-15T00:00:00
Link: CVE-2017-17704
Vulnrichment
No data.
NVD
Status : Modified
Published: 2017-12-31T02:29:01.550
Modified: 2024-11-21T03:18:29.797
Link: CVE-2017-17704
Redhat
No data.