Known exploited vulnerability
CVE-2019-17621
The short answer
CVE-2019-17621 affects n/a n/a and is rated critical (CVSS 9.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2023-06-29: attackers are using it, so patch it first. The vendor has linked a patch.
What it is
The UPnP endpoint URL /gena.cgi in the D-Link DIR-859 Wi-Fi router 1.05 and 1.06B01 Beta01 allows an Unauthenticated remote attacker to execute system commands as root, by sending a specially crafted HTTP SUBSCRIBE request to the UPnP service when connecting to the local network.
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 Jun 29, 2023
Federal due date Jul 20, 2023
EPSS, next 30 days
91%
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 updates per vendor instructions or discontinue use of the product if updates are unavailable.
Affected products
n/a. NVD's record lists the exact affected versions.
References
- medium.com/%40s1kr10s/d-link-dir-859-rce-unautenticated-cve-2019-17621-en-d94b47a15104 ExploitThird Party Advisory
- medium.com/%40s1kr10s/d-link-dir-859-rce-unautenticated-cve-2019-17621-es-fad716629ff9 Broken Link
- supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10146 PatchVendor Advisory
- supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10147 PatchVendor Advisory
- www.dlink.com/en/security-bulletin Vendor Advisory
- www.ftc.gov/system/files/documents/cases/dlink_proposed_order_and_judgment_7-2-19.pdf Third Party AdvisoryUS Government Resource
- medium.com/%40s1kr10s/d-link-dir-859-rce-unautenticated-cve-2019-17621-en-d94b47a15104 ExploitThird Party Advisory
- medium.com/%40s1kr10s/d-link-dir-859-rce-unautenticated-cve-2019-17621-es-fad716629ff9 Broken Link
- supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10146 PatchVendor Advisory
- supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10147 PatchVendor Advisory
- www.dlink.com/en/security-bulletin Vendor Advisory
- www.ftc.gov/system/files/documents/cases/dlink_proposed_order_and_judgment_7-2-19.pdf Third Party AdvisoryUS Government Resource
Questions
Is CVE-2019-17621 being exploited?
Yes. CISA added CVE-2019-17621 to its Known Exploited Vulnerabilities catalog on 2023-06-29, with a federal remediation due date of 2023-07-20.
How do I fix CVE-2019-17621?
CISA's required action: Apply updates per vendor instructions or discontinue use of the product if updates 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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