Known exploited vulnerability
CVE-2019-16920
The short answer
CVE-2019-16920 affects n/a n/a and is rated critical (CVSS 9.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2022-03-25: attackers are using it, so patch it first.
What it is
Unauthenticated remote code execution occurs in D-Link products such as DIR-655C, DIR-866L, DIR-652, and DHP-1565. The issue occurs when the attacker sends an arbitrary input to a "PingTest" device common gateway interface that could lead to common injection. An attacker who successfully triggers the command injection could achieve full system compromise. Later, it was independently found that these are also affected: DIR-855L, DAP-1533, DIR-862L, DIR-615, DIR-835, and DIR-825.
Weakness: CWE-78.
Severity
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Mar 25, 2022
Federal due date Apr 15, 2022
EPSS, next 30 days
100%
Higher than 100% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
The impacted product is end-of-life and should be disconnected if still in use.
Affected products
n/a. NVD's record lists the exact affected versions.
References
- fortiguard.com/zeroday/FG-VD-19-117 Broken LinkThird Party Advisory
- medium.com/%4080vul/determine-the-device-model-affected-by-cve-2019-16920-by-zoomeye-bf6fec7f9bb3 ExploitThird Party Advisory
- www.kb.cert.org/vuls/id/766427 Third Party AdvisoryUS Government Resource
- www.seebug.org/vuldb/ssvid-98079 ExploitThird Party Advisory
- fortiguard.com/zeroday/FG-VD-19-117 Broken LinkThird Party Advisory
- medium.com/%4080vul/determine-the-device-model-affected-by-cve-2019-16920-by-zoomeye-bf6fec7f9bb3 ExploitThird Party Advisory
- www.kb.cert.org/vuls/id/766427 Third Party AdvisoryUS Government Resource
- www.seebug.org/vuldb/ssvid-98079 ExploitThird Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-16920 US Government Resource
Questions
Is CVE-2019-16920 being exploited?
Yes. CISA added CVE-2019-16920 to its Known Exploited Vulnerabilities catalog on 2022-03-25, with a federal remediation due date of 2022-04-15.
How do I fix CVE-2019-16920?
CISA's required action: The impacted product is end-of-life and should be disconnected if still in use.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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