CVE-2021-34762
Last modified
CVE-2021-34762 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to perform a directory traversal attack on an affected device. The attacker would require valid device credentials. EPSS estimates a 1.91% chance of exploitation in the next 30 days.
Description
A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to perform a directory traversal attack on an affected device. The attacker would require valid device credentials. The vulnerability is due to insufficient input validation of the HTTPS URL by the web-based management interface. An attacker could exploit this vulnerability by sending a crafted HTTPS request that contains directory traversal character sequences to an affected device. A successful exploit could allow the attacker to read or write arbitrary files on the device.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Firepower Management Center Virtual Appliance | 6.2.3 |
| Cisco | Firepower Management Center Virtual Appliance | 6.4.0 |
| Cisco | Firepower Management Center Virtual Appliance | 6.5.0 |
| Cisco | Firepower Management Center Virtual Appliance | 6.6.1 |
| Cisco | Firepower Management Center Virtual Appliance | 6.6.2 |
| Cisco | Firepower Management Center Virtual Appliance | 6.6.3 |
| Cisco | Firepower Management Center Virtual Appliance | 6.6.4 |
| Cisco | Firepower Management Center Virtual Appliance | 6.7.0 |
| Cisco | Firepower Management Center Virtual Appliance | 7.0.0 |
| Cisco | Firepower Management Center Virtual Appliance | 7.1.0 |
| Cisco | Secure Firewall Threat Defense | < 6.4.0.13 |
| Cisco | Secure Firewall Threat Defense | >= 6.5.0, < 6.6.5 |
| Cisco | Secure Firewall Threat Defense | >= 6.7.0, < 6.7.0.3 |
| Cisco | Secure Firewall Threat Defense | >= 7.0.0, < 7.0.1 |
| Cisco | Sourcefire Defense Center | 6.2.3 |
| Cisco | Sourcefire Defense Center | 6.4.0 |
| Cisco | Sourcefire Defense Center | 6.5.0 |
| Cisco | Sourcefire Defense Center | 6.6.1 |
| Cisco | Sourcefire Defense Center | 6.6.2 |
| Cisco | Sourcefire Defense Center | 6.6.3 |
| Cisco | Sourcefire Defense Center | 6.6.4 |
| Cisco | Sourcefire Defense Center | 7.0.0 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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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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