CVE-2020-3315
Last modified
CVE-2020-3315 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass the configured file policies on an affected system. The vulnerability is due to errors in how the Snort detection engine handles specific HTTP responses. EPSS estimates a 2.16% chance of exploitation in the next 30 days.
Description
Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass the configured file policies on an affected system. The vulnerability is due to errors in how the Snort detection engine handles specific HTTP responses. An attacker could exploit this vulnerability by sending crafted HTTP packets that would flow through an affected system. A successful exploit could allow the attacker to bypass the configured file policies and deliver a malicious payload to the protected network.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Secure Firewall Management Center | 2.9.14.4 |
| Cisco | Secure Firewall Management Center | 2.9.15 |
| Cisco | Secure Firewall Management Center | 2.9.16 |
| Cisco | Secure Firewall Threat Defense | < 6.6.0 |
| Cisco | Ios | 15.2\(7\)e |
| Cisco | Ios | 16.11.2 |
| Cisco | Ios | 17.3.1 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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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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