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CVE-2021-20134Not scoredCWE-22

CVE-2021-20134: Dlink Quagga Services on D-Link DIR-2640 Routers vulnerability

Dlink · Quagga Services on D-Link DIR-2640 Routers

Affected: Dlink Quagga Services on D-Link DIR-2640 Routers · Exploitation: possible (1 to 10%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

7.8%probability of exploitation in the next 30 days
94th percentile
050100

Higher than 94% of scored CVEs

Not scored yet. The CVE record carries no CVSS score.

DescriptionCVE.org

Quagga Services on D-Link DIR-2640 less than or equal to version 1.11B02 are affected by an absolute path traversal vulnerability that allows a remote, authenticated attacker to set an arbitrary file on the router's filesystem as the log file used by either Quagga service (zebra or ripd). Subsequent log messages will be appended to the file, prefixed by a timestamp and some logging metadata. Remote code execution can be achieved by using this vulnerability to append to a shell script on the router's filesystem, and then awaiting or triggering the execution of that script. A remote, unauthenticated root shell can easily be obtained on the device in this fashion.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • Quagga Services on D-Link DIR-2640 Routers<= 1.11B02

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas
Exploitation
Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV
Not listed
Public check
No public nuclei template
Vendor
Dlink
Published
December 2021

CoverageNo articles yet

No CyberSIXT article names CVE-2021-20134 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References