10 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
10 High
AI Score
Confidence
High
0.946 High
EPSS
Percentile
99.3%
In Progress Telerik Report Server, version 2024 Q1 (10.0.24.305) or earlier, on IIS, an unauthenticated attacker can gain access to Telerik Report Server restricted functionality via an authentication bypass vulnerability.
Recent assessments:
remmons-r7 at June 03, 2024 6:57pm UTC reported:
So far, 2024 has seen a few notable vulnerabilities, such as CVE-2024-1709, that attack setup wizard flows for authentication bypass. This vulnerability, discovered by researcher Sina Kheirkhah, falls into the same group. By exploiting an access control vulnerability in the administrator setup wizard, unauthenticated attackers gain high-privileged access to Telerik Report Server. With the newly-acquired administrator account, another new Report Server vulnerability, tracked as CVE-2024-1800, can be leveraged for remote code execution on the host system.
The initial administrator setup code in Telerik.ReportServer.Web.dll!Telerik.ReportServer.Web.Controllers.StartupController.Register
does not check if setup has already been completed. As a result, the attacker can manually perform the web request to create a new administrator account. Per Sinaβs public proof of concept, the authentication bypass vulnerability can be exploited with a single request:
curl 'http://TARGET_HERE/Startup/Register' -d 'Username=USERNAME_HERE&Password=PASSWORD_HERE&ConfirmPassword=PASSWORD_HERE&Email=backdoor%40admin.com&FirstName=backdoor&LastName=user'
Itβs worth mentioning that Shodan only appears to return a few hundred public-facing Telerik Report Server instances. However, due to the unauthenticated RCE impact, organizations running the Report Server would be wise to patch with urgency. The Progress Knowledge Base contains guidance on how to remediate this vulnerability.
Assessed Attacker Value: 5
Assessed Attacker Value: 5Assessed Attacker Value: 5
10 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
10 High
AI Score
Confidence
High
0.946 High
EPSS
Percentile
99.3%