CyberSecBulletin
CVE-2023-37864NVD status: Modified

WP 6070-WVPS: Download of Code Without Integrity Check

Published Updated By the CyberSecBulletin desk

CVE-2023-37864 is a high-severity download of code without integrity check vulnerability in WP 6070-WVPS from Phoenix Contact, with a CVSS 3.1 base score of 7.2 out of 10. It can be exploited remotely over the network by an attacker with administrator privileges, without any action from a user. The record lists version 4.0.10 as the first without the flaw, so updating WP 6070-WVPS to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.42% 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. Update WP 6070-WVPS to 4.0.10 or a later version.
  2. Update WP 6101-WXPS to 4.0.10 or a later version.
  3. Update WP 6121-WXPS to 4.0.10 or a later version.

Affected products and versions

VendorProductAffected versionsFixed in
PHOENIX CONTACTWP 6070-WVPSbefore 4.0.104.0.10
PHOENIX CONTACTWP 6101-WXPSbefore 4.0.104.0.10
PHOENIX CONTACTWP 6121-WXPSbefore 4.0.104.0.10
PHOENIX CONTACTWP 6156-WHPSbefore 4.0.104.0.10
PHOENIX CONTACTWP 6185-WHPSbefore 4.0.104.0.10
PHOENIX CONTACTWP 6215-WHPSbefore 4.0.104.0.10
Phoenixcontactwp_6070-wvpsbefore 4.0.104.0.10
Phoenixcontactwp_6101-wxpsbefore 4.0.104.0.10
Phoenixcontactwp_6121-wxpsbefore 4.0.104.0.10
Phoenixcontactwp_6156-whpsbefore 4.0.104.0.10
Phoenixcontactwp_6185-whpsbefore 4.0.104.0.10
Phoenixcontactwp_6215-whpsbefore 4.0.104.0.10
PhoenixcontactWP 6070-wvps Firmwarebefore 4.0.104.0.10
PhoenixcontactWP 6101-wxps Firmwarebefore 4.0.104.0.10
PhoenixcontactWP 6121-wxps Firmwarebefore 4.0.104.0.10
PhoenixcontactWP 6156-whps Firmwarebefore 4.0.104.0.10
PhoenixcontactWP 6185-whps Firmwarebefore 4.0.104.0.10
PhoenixcontactWP 6215-whps Firmwarebefore 4.0.104.0.10

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
HighAdministrator-level access is required first.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. Scored by CNA (cert.vde.com).

Official description

In PHOENIX CONTACTs WP 6xxx series web panels in versions prior to 4.0.10 a remote attacker with SNMPv2 write privileges may use an a special SNMP request to gain full access to the device.

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

The underlying weakness: Download of Code Without Integrity Check

The product downloads source code or an executable from a remote location and executes the code without sufficiently verifying the origin and integrity of the code.

How developers prevent this class of flaw

  • Perform proper forward and reverse DNS lookups to detect DNS spoofing.
  • Encrypt the code with a reliable encryption scheme before transmitting.
  • Run your code using the lowest privileges that are required to accomplish the necessary tasks. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment. For example, database applications rarely need to run as the database administrator, especially in day-to-day operations.

More Download of Code Without Integrity Check vulnerabilities (CWE-494)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
  3. Record last changed materially (score, affected products, status or references).

References

Third-party and government advisories

Other vulnerabilities in WP 6070-WVPS

All WP 6070-WVPS vulnerabilities

Recent Download of Code Without Integrity Check vulnerabilities

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