CVE-2023-20073
CriticalExploitedA vulnerability in the web-based management interface of Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an unauthenticated, remote attacker to upload arbitrary files to an affected device.
Published Feb 3, 2023 · Updated Oct 28, 2024
Key Facts
Patch immediately- CVE-2023-20073 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Rv340 Firmware (Cisco), Rv340w Firmware (Cisco), Rv345 Firmware (Cisco) and 2 more products.
- It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 22, 2023. No public exploit code is known.
- EPSS estimates a 90% probability of exploitation in the next 30 days.
- Fixed versions are available, including Rv340 Firmware <=1.0.03.29, Rv340w Firmware <=1.0.03.29, Rv345 Firmware <=1.0.03.29.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
90%
Higher than 99.7% of all scored CVEs
Exploited in the wild
Yes
2 catalog listings
Public exploit code
None known
Get the full CVE-2023-20073 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
A vulnerability in the web-based management interface of Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an unauthenticated, remote attacker to upload arbitrary files to an affected device. This vulnerability is due to insufficient authorization enforcement mechanisms in the context of file uploads. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to upload arbitrary files to the affected device.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Nov 15, 2023 | n/a | Not reported |
| CIRCL KEV | Oct 22, 2023 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
5 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Rv340 FirmwareCisco | See advisory | 1.0.03.29 |
| Rv340w FirmwareCisco | See advisory | 1.0.03.29 |
| Rv345 FirmwareCisco | See advisory | 1.0.03.29 |
| Rv345p FirmwareCisco | See advisory | 1.0.03.29 |
| Cisco Small Business RV Series Router Firmware | >= n/a | n/a |
Patched Releases
Rv340 Firmware
<=1.0.03.29
Rv340w Firmware
<=1.0.03.29
Rv345 Firmware
<=1.0.03.29
Rv345p Firmware
<=1.0.03.29
Timeline
Publicly disclosed
Feb 3, 2023
Added to CIRCL KEV
Oct 22, 2023
Added to Industry KEV feed
Nov 15, 2023
Last updated
Oct 28, 2024
Weakness Type
- CWE-434 Unrestricted Upload of File with Dangerous Type
References
- advisoryhttps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-20021
- advisoryhttps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-20030
- advisoryhttps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-20068
- advisoryhttps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-20073
- advisoryhttps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-20076
FAQ
Common Questions.
A vulnerability in the web-based management interface of Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an unauthenticated, remote attacker to upload arbitrary files to an affected device.
Affected: Rv340 Firmware (Cisco); Rv340w Firmware (Cisco); Rv345 Firmware (Cisco), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 22, 2023.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Rv340 Firmware <=1.0.03.29, Rv340w Firmware <=1.0.03.29, Rv345 Firmware <=1.0.03.29.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2023-20073 Running On Your Attack Surface?
Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.
Request A Demo