CVE-2024-38206
Server-Side Request Forgery (SSRF) (CWE-918)
Summary
An authenticated attacker can bypass Server-Side Request Forgery (SSRF) protection in Microsoft Copilot Studio to leak sensitive information over a network. This vulnerability has a CVSS base score of 6.5, indicating medium severity. The attack vector is network-based, requires low attack complexity, and low privileges, with no user interaction needed. The confidentiality impact is rated as high, while the integrity and availability impacts are none.
Impact
This vulnerability could allow an authenticated attacker to bypass SSRF protection in Microsoft Copilot Studio, potentially leading to the leakage of sensitive information over a network. The confidentiality impact is high, which means attackers could access and exfiltrate sensitive data. However, the integrity and availability of the system are not directly affected. The attack is network-based and does not require user interaction, making it potentially easier for attackers to exploit remotely.
Exploitation
There is no evidence that a public proof-of-concept exists. There is no evidence of proof of exploitation at the moment.
Patch
A patch is available. Microsoft has released an official fix for this vulnerability. The patch was added on August 6, 2024. It is crucial for the security team to apply this patch as soon as possible to mitigate the risk.
Mitigation
1. Apply the official patch released by Microsoft as soon as possible. 2. Limit network access to Microsoft Copilot Studio to trusted users only. 3. Implement strong authentication mechanisms to prevent unauthorized access. 4. Monitor for any suspicious network activities or data exfiltration attempts. 5. Regularly review and update access controls for Microsoft Copilot Studio. 6. Implement network segmentation to isolate sensitive resources that could be targeted through this vulnerability.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N/E:U/RL:O/RC:C
Timeline
A CVSS base score of 8.5 has been assigned.
Feedly found the first article mentioning CVE-2024-38206. See article
Feedly estimated the CVSS score as MEDIUM
NVD published the first details for CVE-2024-38206
A CVSS base score of 6.5 has been assigned.
CVE-2024-38206 is a critical severity information disclosure vulnerability affecting Microsoft’s Copilot Studio, with a CVSSv3 score of 8.5. The vulnerability could be exploited by an authenticated attacker to bypass SSRF protections and leak sensitive information. Microsoft has released a patch for this vulnerability, and no user action is required. See article
EPSS Score was set to: 0.09% (Percentile: 39.6%)