CVE-2024-20381 Cisco Network Services Orchestrator Configuration Update Authorization Bypass Vulnerability

High 8.8 Published Updated

Authenticated attackers can bypass authorization checks in the JSON-RPC API to modify configurations and escalate privileges on Cisco NSO and RV routers.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2024-20381?

CVE-2024-20381 is a high-severity missing authorization vulnerability in Cisco Ios Xr, published on 11 Sep 2024. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability in the JSON-RPC API feature in Cisco Crosswork Network Services Orchestrator (NSO) and ConfD that is used by the web-based management interfaces of Cisco Optical Site Manager and Cisco RV340 Dual WAN Gigabit VPN Routers could allow an authenticated, remote attacker to modify the configuration of an affected application or device.  This vulnerability is due to improper authorization checks on the API. An attacker with privileges sufficient to access the affected application or device could exploit this vulnerability by sending malicious requests to the JSON-RPC API. A successful exploit could allow the attacker to make unauthorized modifications to the configuration of the affected application or device, including creating new user accounts or elevating their own privileges on an affected system.

Weakness: CWE-285

Which versions are affected by CVE-2024-20381?

It affects 3 products.

Products include Cisco Ios Xr, Cisco Network Services Orchestrator, Cisco Small Business Rv Series Router Firmware.

How do I fix CVE-2024-20381?

No fix has been published for CVE-2024-20381 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2024-20381 being exploited?

There is no known exploitation of CVE-2024-20381 in the wild and no public exploit code.

All Cisco Ios Xr vulnerabilities

Sources

Also known as GHSA-rg27-7v3v-xmhh.

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