Horizon Alert
Summary of the vulnerability and why it matters
A vulnerability has been identified in Open5GS, a software component used in network functions. The flaw resides in how the nf-instances Endpoint handles specific information, potentially allowing for resource consumption. This issue can be exploited remotely by an attacker.
- Vulnerable component: nf-instances Endpoint
- Core weakness: Resource consumption via argument manipulation
- Main business impact: Network service disruption
Attack Path
How an attacker could exploit the issue
The vulnerability in Open5GS involves a resource consumption issue within the `handle_amf_info` function. This occurs when an attacker manipulates the `nf_info_pool` argument. Such manipulation can lead to a denial-of-service condition by exhausting system resources. The exploit has been publicly disclosed, making it a potential risk for affected organizations.
- Network exposure required.
- Attacker manipulates `nf_info_pool` argument.
- Results in resource consumption.
Live Threat
Current exploitation, exposure, and threat context
A vulnerability in Open5GS, specifically within the nf-instances Endpoint's NRF handler, could allow for resource consumption. The exploit is publicly disclosed, meaning attackers may be able to utilize it. Patches are available to address the issue.
- Likely attacker skill level: Low
- Required access or conditions: Network access, no special privileges
- Business risk or urgency: Low
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
This vulnerability in Open5GS can lead to resource consumption through manipulation of a specific function argument. The attack can be performed remotely and has been publicly disclosed, indicating a potential risk to affected organizations. Applying the vendor-provided patch is advised to resolve this issue, and the fix is noted as already implemented.
- Identify exposed Open5GS assets.
- Reduce exposure or isolate affected systems.
- Apply fix, verify, and monitor.
