CVE-2020-6959
published 2020-01-22CVE-2020-6959: The following versions of MAXPRO VMS and NVR, MAXPRO VMS:HNMSWVMS prior to Version VMS560 Build 595 T2-Patch, HNMSWVMSLT prior to Version VMS560 Build 595…
PriorityP262critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
2.21%
80.4th percentile
The following versions of MAXPRO VMS and NVR, MAXPRO VMS:HNMSWVMS prior to Version VMS560 Build 595 T2-Patch, HNMSWVMSLT prior to Version VMS560 Build 595 T2-Patch, MAXPRO NVR: MAXPRO NVR XE prior to Version NVR 5.6 Build 595 T2-Patch, MAXPRO NVR SE prior to Version NVR 5.6 Build 595 T2-Patch, MAXPRO NVR PE prior to Version NVR 5.6 Build 595 T2-Patch, and MPNVRSWXX prior to Version NVR 5.6 Build 595 T2-Patch are vulnerable to an unsafe deserialization of untrusted data. An attacker may be able to remotely modify deserialized data without authentication using a specially crafted web request, resulting in remote code execution.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| honeywell | hnmswvms_firmware | <= vms560 | — |
| honeywell | hnmswvmslt_firmware | <= vms560 | — |
| honeywell | maxpro_nvr_pe_firmware | <= 5.6 | — |
| honeywell | maxpro_nvr_se_firmware | <= 5.6 | — |
| honeywell | maxpro_nvr_xe_firmware | <= 5.6 | — |
| honeywell | mpnvrswxx_firmware | <= 5.6 | — |
Detection & IOCsextracted from sources · hover to see the quote
- →Vulnerability is exploitable via a specially crafted web request targeting the deserialization endpoint — monitor for anomalous/malformed HTTP requests to MAXPRO VMS/NVR web interfaces, particularly those that may carry serialized object payloads. ↗
- →No authentication is required to exploit this vulnerability; any unauthenticated inbound web request to the MAXPRO VMS/NVR web interface should be treated as suspicious and reviewed. ↗
- →CVE-2020-6959 is rated CVSS v3 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) — network-accessible, no privileges, no user interaction required; treat all external network access to affected systems as high-risk. ↗
- ·No known public exploits specifically targeting this vulnerability were identified at time of advisory publication — detection opportunities are limited to behavioral/anomaly-based approaches until PoC becomes available. ↗
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
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GHSA
GHSA-3478-j759-vphx: The following versions of MAXPRO VMS and NVR, MAXPRO VMS:HNMSWVMS prior to Version VMS560 Build 595 T2-Patch, HNMSWVMSLT prior to Version VMS560 Build
ghsa_unreviewed·2022-05-24
CVE-2020-6959 [HIGH] GHSA-3478-j759-vphx: The following versions of MAXPRO VMS and NVR, MAXPRO VMS:HNMSWVMS prior to Version VMS560 Build 595 T2-Patch, HNMSWVMSLT prior to Version VMS560 Build
The following versions of MAXPRO VMS and NVR, MAXPRO VMS:HNMSWVMS prior to Version VMS560 Build 595 T2-Patch, HNMSWVMSLT prior to Version VMS560 Build 595 T2-Patch, MAXPRO NVR: MAXPRO NVR XE prior to Version NVR 5.6 Build 595 T2-Patch, MAXPRO NVR SE prior to Version NVR 5.6 Build 595 T2-Patch, MAXPRO NVR PE prior to Version NVR 5.6 Build 595 T2-Patch, and MPNVRSWXX prior to Version NVR 5.6 Build 595 T2-Patch are vulnerable to an unsafe deserialization of untrusted data. An attacker may be able to remotely modify deserialized data without authentication using a specially crafted web request, resulting in remote code execution.
CISA ICS
Honeywell Maxpro VMS & NVR
cisa_ics·2020-01-21·CVSS 9.8
[CRITICAL] Honeywell Maxpro VMS & NVR
## Archived Content In an effort to keep CISA.gov current, the archive contains outdated information that may not reflect current policy or programs.
ICS Advisory
##
Honeywell Maxpro VMS & NVR
Last RevisedJanuary 21, 2020
Alert CodeICSA-20-021-01
## 1. EXECUTIVE SUMMARY
- CVSS v3 9.8
- ATTENTION: Exploitable remotely/low skill level to exploit
- Vendor: Honeywell
- Equipment: MAXPRO VMS & NVR
- Vulnerabilities: Deserialization of Untrusted Data, SQL Injection
## 2. RISK EVALUATION
Successful exploitation of these vulnerabilities could result in elevation of privileges, cause a denial-of-service condition, or allow unauthenticated remote code execution.
## 3. TECHNICAL DETAILS
## 3.1 AFFECTED PRODUCTS
The following versions of MAXPRO
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2020-01-22
Published