Known exploited vulnerability
CVE-2017-18368
The short answer
CVE-2017-18368 affects n/a n/a and is rated critical (CVSS 9.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2023-08-07: attackers are using it, so patch it first.
What it is
The ZyXEL P660HN-T1A v1 TCLinux Fw $7.3.15.0 v001 / 3.40(ULM.0)b31 router distributed by TrueOnline has a command injection vulnerability in the Remote System Log forwarding function, which is accessible by an unauthenticated user. The vulnerability is in the ViewLog.asp page and can be exploited through the remote_host parameter.
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 Aug 7, 2023
Federal due date Aug 28, 2023
EPSS, next 30 days
95%
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
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Affected products
n/a. NVD's record lists the exact affected versions.
References
- raw.githubusercontent.com/pedrib/PoC/master/advisories/zyxel_trueonline.txt ExploitThird Party Advisory
- seclists.org/fulldisclosure/2017/Jan/40 ExploitMailing ListThird Party Advisory
- ssd-disclosure.com/index.php/archives/2910 ExploitTechnical DescriptionThird Party Advisory
- unit42.paloaltonetworks.com/new-mirai-variant-targets-enterprise-wireless-presentation-display-systems/ Technical DescriptionThird Party Advisory
- raw.githubusercontent.com/pedrib/PoC/master/advisories/zyxel_trueonline.txt ExploitThird Party Advisory
- seclists.org/fulldisclosure/2017/Jan/40 ExploitMailing ListThird Party Advisory
- ssd-disclosure.com/index.php/archives/2910 ExploitTechnical DescriptionThird Party Advisory
- unit42.paloaltonetworks.com/new-mirai-variant-targets-enterprise-wireless-presentation-display-systems/ Technical DescriptionThird Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-18368 US Government Resource
Questions
Is CVE-2017-18368 being exploited?
Yes. CISA added CVE-2017-18368 to its Known Exploited Vulnerabilities catalog on 2023-08-07, with a federal remediation due date of 2023-08-28.
How do I fix CVE-2017-18368?
CISA's required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
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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