CVE-2024-20320
Last modified
CVE-2024-20320 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A vulnerability in the SSH client feature of Cisco IOS XR Software for Cisco 8000 Series Routers and Cisco Network Convergence System (NCS) 540 Series and 5700 Series Routers could allow an authenticated, local attacker to elevate privileges on an affected device. This vulnerability is due to insufficient validation of arguments that are included with the SSH client CLI command. EPSS estimates a 0.19% chance of exploitation in the next 30 days.
Description
A vulnerability in the SSH client feature of Cisco IOS XR Software for Cisco 8000 Series Routers and Cisco Network Convergence System (NCS) 540 Series and 5700 Series Routers could allow an authenticated, local attacker to elevate privileges on an affected device. This vulnerability is due to insufficient validation of arguments that are included with the SSH client CLI command. An attacker with low-privileged access to an affected device could exploit this vulnerability by issuing a crafted SSH client command to the CLI. A successful exploit could allow the attacker to elevate privileges to root on the affected device.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ios Xr | 7.2.1 |
| Cisco | Ios Xr | 7.2.2 |
| Cisco | Ios Xr | 7.3.1 |
| Cisco | Ios Xr | 7.3.2 |
| Cisco | Ios Xr | 7.3.3 |
| Cisco | Ios Xr | 7.3.5 |
| Cisco | Ios Xr | 7.3.15 |
| Cisco | Ios Xr | 7.4.1 |
| Cisco | Ios Xr | 7.4.2 |
| Cisco | Ios Xr | 7.5.1 |
| Cisco | Ios Xr | 7.5.2 |
| Cisco | Ios Xr | 7.5.3 |
| Cisco | Ios Xr | 7.5.4 |
| Cisco | Ios Xr | 7.5.5 |
| Cisco | Ios Xr | 7.6.1 |
| Cisco | Ios Xr | 7.6.2 |
| Cisco | Ios Xr | 7.7.1 |
| Cisco | Ios Xr | 7.7.2 |
| Cisco | Ios Xr | 7.7.21 |
| Cisco | Ios Xr | 7.8.1 |
| Cisco | Ios Xr | 7.8.2 |
| Cisco | Ios Xr | 7.9.1 |
| Cisco | Ios Xr | 7.9.2 |
| Cisco | Ios Xr | 7.9.21 |
| Cisco | Ios Xr | 7.10.1 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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