Camera Firmware: Authentication Bypass by Spoofing
CVE-2024-39350 is a high-severity authentication bypass by spoofing vulnerability in Camera Firmware from Synology, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited from the same local network by an unauthenticated attacker, without any action from a user. The record lists version 1.0.7-0298 as the first without the flaw, so updating Camera Firmware to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.67% chance of exploitation within 30 days, higher than 52% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Camera Firmware to 1.0.7-0298 or a later version.
- Update Tc500 Firmware to 1.0.7-0298 or a later version.
- Update Bc500 Firmware to 1.0.7-0298 or a later version.
- Read the advisory on synology.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Synology | Camera Firmware | 1.0 up to, but not including, 1.0.7-0298 | 1.0.7-0298 |
| Synology | Tc500 Firmware | before 1.0.7-0298 | 1.0.7-0298 |
| Synology | Bc500 Firmware | before 1.0.7-0298 | 1.0.7-0298 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- AdjacentThe attacker must be on the same local network segment.
- Attack complexity
- HighSuccess depends on conditions outside the attacker's control.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.5 | High | CNA (synology.com) |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
A vulnerability regarding authentication bypass by spoofing is found in the RTSP functionality. This allows man-in-the-middle attackers to obtain privileges without consent via unspecified vectors. The following models with Synology Camera Firmware versions before 1.0.7-0298 may be affected: BC500 and TC500.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Authentication Bypass by Spoofing
This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.
More Authentication Bypass by Spoofing vulnerabilities (CWE-290)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in Camera Firmware
- 9.8 Critical severity
- 7.2 High severity
- 9.8 Critical severity
- 7.2 High severity
- 9.8 Critical severity
Recent Authentication Bypass by Spoofing vulnerabilities
- 7.5 High severity
- 8.2 High severity
- 7.5 High severity
- 9.8 Critical severity
- 9.8 Critical severity
- 9.8 Critical severity
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