Detections
Analytics
Siemens SCALANCE XCM332 Allocation of Resources Without Limits or Throttling (CVE-2022-32206)
medium Tenable OT Security Plugin ID 500970
Synopsis
The remote OT asset is affected by a vulnerability.Description
curl < 7.84.0 supports chained HTTP compression algorithms, meaning that a serverresponse can be compressed multiple times and potentially with different algorithms. The number of acceptable links in this decompression chain was unbounded, allowing a malicious server to insert a virtually unlimited number of compression steps.The use of such a decompression chain could result in a malloc bomb, makingcurl end up spending enormous amounts of allocated heap memory, or trying toand returning out of memory errors.This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.
Solution
The following text was originally created by the Cybersecurity and Infrastructure Security Agency (CISA). The original can be found at CISA.gov.Siemens has released an update for the SCALANCE XCM332 and recommends updating to the latest version:
- SCALANCE XCM332 (6GK5332-0GA01-2AC2): Update to V2.2 or later version
As a general security measure, Siemens recommends protecting network access to devices with appropriate mechanisms. To operate the devices in a protected IT environment, Siemens recommends configuring the environment according to Siemens’ operational guidelines for industrial security and following the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at the Siemens Industrial Security web page.
For further inquiries on security vulnerabilities in Siemens products and solutions, users should contact the Siemens ProductCERT.
For more information see the associated Siemens security advisory SSA-558014 in HTML and CSAF.
See Also
https://hackerone.com/reports/1570651
http://www.nessus.org/u?59ba3f3e
http://www.nessus.org/u?4af41997
https://cert-portal.siemens.com/productcert/html/ssa-558014.html
https://www.debian.org/security/2022/dsa-5197
https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html
https://security.netapp.com/advisory/ntap-20220915-0003/
https://support.apple.com/kb/HT213488
https://www.cisa.gov/news-events/ics-advisories/icsa-23-103-09
http://seclists.org/fulldisclosure/2022/Oct/41
http://seclists.org/fulldisclosure/2022/Oct/28
https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdf
Plugin Details
Severity: Medium
ID: 500970
Version: 1.3
Type: remote
Family: Tenable.ot
Published: 4/11/2023
Updated: 7/24/2023
Supported Sensors: Tenable OT Security
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Medium
Base Score: 4.3
Temporal Score: 3.6
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS Score Source: CVE-2022-32206
CVSS v3
Risk Factor: Medium
Base Score: 6.5
Temporal Score: 6
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:siemens:scalance_sc622-2c_firmware, cpe:/o:siemens:scalance_sc626-2c_firmware, cpe:/o:siemens:scalance_xcm332_firmware, cpe:/o:siemens:scalance_sc642-2c_firmware, cpe:/o:siemens:scalance_sc632-2c_firmware, cpe:/o:siemens:scalance_sc646-2c_firmware, cpe:/o:siemens:scalance_sc636-2c_firmware
Required KB Items: Tenable.ot/Siemens
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 7/7/2022
Vulnerability Publication Date: 7/7/2022
Reference Information
CVE: CVE-2022-32206