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GHSA-7c47-xr7q-p6hg
No affected components available
Impact
This is an Improper Input Validation vulnerability leading to Denial of Service.
- Security Impact: A remote attacker can cause the NRF service to panic and crash by sending a crafted HTTP GET request with a malformed
group-id-listparameter. This results in complete denial of service for the NRF discovery service. - Functional Impact: The
EncodeGroupIdfunction attempts to access array indices [0], [1], [2] without validating the length of the split data. When the parameter contains insufficient separator characters, the code panics with "index out of range". - Affected Parties: All deployments of free5GC v4.0.1 using the NRF discovery service.
Patches
Yes, the issue has been patched.
The fix is implemented in PR free5gc/nrf#80 (commit: [add fix reference here]).
Users should upgrade to the next release of free5GC that includes this commit.
Workarounds
There is no direct workaround at the application level. The recommendation is to apply the provided patch or restrict access to the NRF API to trusted sources only.
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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