CVE-2023-45317

Q: What is the severity of CVE-2023-45317?

CVE-2023-45317 has a CVSS score of 8.8 (HIGH). This CVE describes a Cross-Site Request Forgery (CSRF) vulnerability in an application interface that fails to validate HTTP requests. Attackers can trick logged-in users into performing unauthorized actions with administrative privileges by visiting malicious websites. This affects systems running vulnerable versions of the affected software.

8.8 HIGH

Authentication Bypass CSRF

📋 TL;DR

This CVE describes a Cross-Site Request Forgery (CSRF) vulnerability in an application interface that fails to validate HTTP requests. Attackers can trick logged-in users into performing unauthorized actions with administrative privileges by visiting malicious websites. This affects systems running vulnerable versions of the affected software.

💻 Affected Systems

Products:

Sielco products (specific product names not provided in CVE description)

Versions: Specific versions not provided in CVE description

Operating Systems: Not specified

Default Config Vulnerable: ⚠️ Yes

Notes: Affects applications that allow HTTP requests without proper CSRF validation. Requires user to be logged in and visit malicious site.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise where attackers gain administrative control, modify configurations, steal sensitive data, or disrupt operations.

🟠

Likely Case

Unauthorized administrative actions performed by attackers, potentially leading to data manipulation, privilege escalation, or service disruption.

🟢

If Mitigated

Limited impact with proper CSRF protections, network segmentation, and user awareness training in place.

🌐 Internet-Facing: HIGH

🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ✅ No

Complexity: LOW

Exploitation requires social engineering to trick authenticated users into visiting malicious websites. No authentication bypass needed.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not specified in provided references

Vendor Advisory: https://www.sielco.org/en/contacts

Restart Required: Yes

Instructions:

1. Contact Sielco for patch information. 2. Apply vendor-provided security updates. 3. Restart affected services. 4. Verify fix implementation.

🔧 Temporary Workarounds

Implement CSRF Tokens

all

Add anti-CSRF tokens to all state-changing HTTP requests

SameSite Cookie Attribute

all

Set SameSite=Strict or SameSite=Lax attributes on session cookies

Set-Cookie: session=value; SameSite=Strict; Secure; HttpOnly

🧯 If You Can't Patch

Implement web application firewall (WAF) rules to detect and block CSRF attempts
Segment network to restrict access to vulnerable systems and implement strict access controls

🔍 How to Verify

Check if Vulnerable:

Test if application accepts state-changing requests without CSRF tokens when user is authenticated

Check Version:

Check with vendor for specific version information and patch availability

Verify Fix Applied:

Verify that all state-changing requests now require valid CSRF tokens and fail without them

📡 Detection & Monitoring

Log Indicators:

Multiple failed administrative actions from same user session
Unusual administrative actions from non-admin users

Network Indicators:

HTTP requests to administrative endpoints without referrer headers or CSRF tokens
Requests originating from unexpected sources

SIEM Query:

source_ip NOT IN (trusted_networks) AND (uri CONTAINS '/admin/' OR uri CONTAINS '/config/') AND http_method IN ('POST', 'PUT', 'DELETE')

📊 Metadata

CVE ID: CVE-2023-45317

CVSS v3 Score: 8.8 (HIGH)

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE: CWE-352

Published: October 26, 2023

Last Updated: November 21, 2024

🔗 References

https://www.cisa.gov/news-events/ics-advisories/icsa-23-299-08 Third Party Advisory,US Government Resource
https://www.sielco.org/en/contacts Product
https://www.cisa.gov/news-events/ics-advisories/icsa-23-299-08 Third Party Advisory,US Government Resource
https://www.sielco.org/en/contacts Product

📋 TL;DR

💻 Affected Systems

📦 What is this software?

Analog Fm Transmitter Exc1000gt Firmware by Sielco

Analog Fm Transmitter Exc1000gx Firmware by Sielco

Analog Fm Transmitter Exc100gt Firmware by Sielco

Analog Fm Transmitter Exc120gt Firmware by Sielco

Analog Fm Transmitter Exc120gx Firmware by Sielco

Analog Fm Transmitter Exc1600gx Firmware by Sielco

Analog Fm Transmitter Exc1600gx Firmware by Sielco

Analog Fm Transmitter Exc2000gx Firmware by Sielco

Analog Fm Transmitter Exc3000gx Firmware by Sielco

Analog Fm Transmitter Exc300gt Firmware by Sielco

Analog Fm Transmitter Exc300gx Firmware by Sielco

Analog Fm Transmitter Exc30gt Firmware by Sielco

Analog Fm Transmitter Exc5000gt Firmware by Sielco

Analog Fm Transmitter Exc5000gx Firmware by Sielco

Analog Fm Transmitter Exc5000gx Firmware by Sielco

Radio Link Exc19 Firmware by Sielco

Radio Link Exc19 Firmware by Sielco

Radio Link Rtx19 Firmware by Sielco

Radio Link Rtx19 Firmware by Sielco

Radio Link Rtx19 Firmware by Sielco

Radio Link Rtx19 Firmware by Sielco

⚠️ Risk & Real-World Impact

Worst Case

Likely Case

If Mitigated

🎯 Exploit Status

🛠️ Fix & Mitigation

✅ Official Fix

Instructions:

🔧 Temporary Workarounds

Implement CSRF Tokens

SameSite Cookie Attribute

🧯 If You Can't Patch

🔍 How to Verify

Check if Vulnerable:

Check Version:

Verify Fix Applied:

📡 Detection & Monitoring

Log Indicators:

Network Indicators:

SIEM Query:

📊 Metadata

🔗 References

📤 Share & Export

🔗 Related Vulnerabilities