CVE-2020-6994
A buffer overflow vulnerability was found in some devices of Hirschmann Automation and Control HiOS and HiSecOS.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.65%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A buffer overflow vulnerability was found in some devices of Hirschmann Automation and Control HiOS and HiSecOS. The vulnerability is due to improper parsing of URL arguments. An attacker could exploit this vulnerability by specially crafting HTTP requests to overflow an internal buffer. The following devices using HiOS Version 07.0.02 and lower are affected: RSP, RSPE, RSPS, RSPL, MSP, EES, EES, EESX, GRS, OS, RED. The following devices using HiSecOS Version 03.2.00 and lower are affected: EAGLE20/30.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.65% probability · 75th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-12, CWE-120
- Affected
- belden/hirschmann hios · belden/hirschmann hisecos
- Source
- ics-cert@hq.dhs.gov
References
- https://www.us-cert.gov/ics/advisories/icsa-20-091-01Mitigation, Third Party Advisory, US Government Resource
- https://www.us-cert.gov/ics/advisories/icsa-20-091-01Mitigation, Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.