CyberSecBulletin
CVE-2024-23766NVD status: Deferred

anybus_x-gateway_ab7832-f3: Use of HTTP Request With Sensitive Query String

Published Updated By the CyberSecBulletin desk

CVE-2024-23766 is a high-severity use of HTTP request with sensitive query string vulnerability in anybus_x-gateway_ab7832-f3 from HMS Networks, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected anybus_x-gateway_ab7832-f3 versions: all versions. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.44% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Check which version of anybus_x-gateway_ab7832-f3 you run against the affected versions below, and install the vendor's latest release.
  2. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
Hms-networksanybus_x-gateway_ab7832-f3all versionsNot stated

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
NoneNo data is disclosed.
Integrity
NoneNothing can be modified.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. Scored by CISA (ADP).

Official description

An issue was discovered on HMS Anybus X-Gateway AB7832-F 3 devices. The gateway exposes a web interface on port 80. An unauthenticated GET request to a specific URL triggers the reboot of the Anybus gateway (or at least most of its modules). An attacker can use this feature to carry out a denial of service attack by continuously sending GET requests to that URL.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Use of HTTP Request With Sensitive Query String

The web application uses an HTTP method to process a request, but the request includes sensitive information in the query string.

How developers prevent this class of flaw

  • When sending sensitive information, only include it in the request body or request headers instead of the query string. This may require avoiding use of GET requests.

More Use of HTTP Request With Sensitive Query String vulnerabilities (CWE-598)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Recent Use of HTTP Request With Sensitive Query String vulnerabilities

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