CVE-2018-15839: D-Link DIR-615 devices have a buffer overflow via a long Authorization HTTP header.

PriorityP273critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EXPLOIT

EPSS

45.35%

98.6th percentile

D-Link DIR-615 devices have a buffer overflow via a long Authorization HTTP header.

Detection & IOCsextracted from sources · hover to see the quote

otherAuthorization: Basic <5000-character payload>↗

→Detect abnormally long Authorization HTTP headers (e.g., ≥5000 bytes) in requests to D-Link DIR-615 management interface, which may indicate a buffer overflow/DoS attempt. ↗
→Monitor for oversized SessionId cookie values alongside oversized Authorization headers targeting the DIR-615 web interface. ↗

·The PoC requires the attacker to be on the same local network as the target DIR-615 device (layer-2 adjacency required). ↗
·The vulnerability affects D-Link DIR-615 devices; no specific firmware version is scoped in the available sources beyond the device model. ↗

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

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