CVE-2023-5035

Cookie Without Secure Flag

Description

A vulnerability has been identified in PT-G503 Series firmware versions prior to v5.2, where the Secure attribute for sensitive cookies in HTTPS sessions is not set, which could cause the cookie to be transmitted in plaintext over an HTTP session. The vulnerability may lead to security risks, potentially exposing user session data to unauthorized access and manipulation.

Remediation

Workaround:

  • Users should carefully use HTTP if necessary, and could try to replace HTTP by HTTPS when using the web service. Additionally, refer to the following mitigation measures to deploy the product in an appropriate product security context. Moxa recommends users follow CISA recommendations.   * Reduce network exposure by ensuring that all control system devices and systems are not accessible from the Internet. * Place control system networks and remote devices behind firewalls, isolating them from business networks. * When remote access is necessary, employ secure methods such as Virtual Private Networks (VPNs). It is important to note that VPNs may have vulnerabilities and should be kept up to date with the latest available version. Remember that the security of a VPN depends on the security of its connected devices.

Categories

3.1
CVSS
Severity: Low
CVSS 3.1 •
EPSS 0.10%
Vendor Advisory moxa.com
Affected: Moxa PT-G503 Series
Published at:
Updated at:

References

Link Tags
https://www.moxa.com/en/support/product-support/security-advisory/mpsa-230203-pt-g503-series-multiple-vulnerabilities vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-5035?
CVE-2023-5035 has been scored as a low severity vulnerability.
How to fix CVE-2023-5035?
As a workaround for remediating CVE-2023-5035: Users should carefully use HTTP if necessary, and could try to replace HTTP by HTTPS when using the web service. Additionally, refer to the following mitigation measures to deploy the product in an appropriate product security context. Moxa recommends users follow CISA recommendations.   * Reduce network exposure by ensuring that all control system devices and systems are not accessible from the Internet. * Place control system networks and remote devices behind firewalls, isolating them from business networks. * When remote access is necessary, employ secure methods such as Virtual Private Networks (VPNs). It is important to note that VPNs may have vulnerabilities and should be kept up to date with the latest available version. Remember that the security of a VPN depends on the security of its connected devices.
Is CVE-2023-5035 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-5035 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-5035?
CVE-2023-5035 affects Moxa PT-G503 Series.
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