CVE-2013-4985

published 2019-12-27

CVE-2013-4985: Multiple Vivotek IP Cameras remote authentication bypass that could allow access to the video stream

Priority P2 65 high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C H I N A N

EXPLOIT

Multiple Vivotek IP Cameras remote authentication bypass that could allow access to the video stream

Affected

6 ranges

Vendor	Product	Version range	Fixed in
vivotek	ip7160_firmware	—	—
vivotek	ip7160_firmware	—	—
vivotek	ip7361_firmware	—	—
vivotek	ip7361_firmware	—	—
vivotek	ip8332_firmware	—	—
vivotek	ip8332_firmware	—	—

Detection & IOCs extracted from sources · hover to see the quote

port 554↗

url rtsp://localhost:9999/live.sdp↗

other Authorization: Basic a↗

path /live.sdp↗

• → Detect RTSP authentication bypass attempts by monitoring for RTSP DESCRIBE requests on TCP port 554 where the Authorization header contains a single-character Base64 token (e.g., 'Authorization: Basic a'), indicating a spoofed/minimal credential used to bypass basic auth. ↗
• → Monitor for RTSP traffic (TCP port 554) targeting Vivotek IP cameras (IP7160, IP7361, IP8332) with firmware versions 0105a or 0105b, particularly DESCRIBE requests to the /live.sdp resource. ↗
• → Alert on RTSP sessions where a 401 Unauthorized response is followed immediately by a subsequent DESCRIBE request bearing a trivially short or invalid Authorization: Basic value, as the PoC intercepts and replaces the credential with a single character. ↗
• → Consider filtering or alerting on all inbound RTSP traffic (default port 554) from untrusted/internet-facing sources targeting Vivotek camera endpoints. ↗

• · The vulnerability only applies when RTSP basic authentication is explicitly enabled on the camera; the vendor noted that RTSP authentication is disabled by default, meaning default-configured cameras may not be directly exploitable via this bypass but are still unauthenticated. ↗
• · Affected firmware versions are 0105a and 0105b; the vendor released beta firmware 0301c as the fix. Cameras not yet patched to 0301c or later remain vulnerable. ↗
• · The PoC acts as a TCP proxy/tunnel that rewrites the Authorization header in-flight; detection must therefore account for man-in-the-middle proxy scenarios and not solely rely on direct camera traffic inspection. ↗

CVSS provenance

nvd v3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

nvd v2.0 5.0 MEDIUM AV:N/AC:L/Au:N/C:P/I:N/A:N

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