CVE-2021-42637
CriticalCVSS 9.8Exploitation Probability (EPSS)
High risk81th percentile - higher than 81% of all known CVEs
Summary
An SSRF vulnerability in PrinterLogic Web Stack versions 19.1.1.13 SP9 and below allows an attacker to use user-controlled input to craft a URL, enabling server-side requests to internal network resources.
Risk Assessment
The risk includes potential scanning of internal networks, access to sensitive data or services, and possible attacks on other systems within the organization's infrastructure.
Recommendation
Immediately upgrade PrinterLogic Web Stack to a version later than 19.1.1.13 SP9, which includes a fix for the SSRF vulnerability.
Other vulnerabilities in PrinterLogic Web Stack
See all- CVE-2021-42640Critical
An IDOR vulnerability in PrinterLogic Web Stack versions 19.1.1.13 SP9 and below allows an unauthenticated attacker to reassign drivers for any printer.
- CVE-2021-42638High
PrinterLogic Web Stack versions 19.1.1.13 SP9 and below are vulnerable to pre-authentication remote code execution due to insufficient input sanitization.
- CVE-2021-42635High
The vulnerability in PrinterLogic Web Stack versions 19.1.1.13 SP9 and below is due to a hardcoded APP_KEY value. This allows pre-authentication remote code execution.
- CVE-2021-42631High
PrinterLogic Web Stack versions 19.1.1.13 SP9 and below deserialize attacker-controlled data, leading to pre-authentication remote code execution.
- CVE-2021-42642High
An IDOR vulnerability in PrinterLogic Web Stack versions 19.1.1.13 SP9 and below allows an unauthenticated attacker to disclose the plaintext console username and password for a printer.
- CVE-2021-42641High
An IDOR vulnerability in PrinterLogic Web Stack versions 19.1.1.13 SP9 and below allows an unauthenticated attacker to disclose usernames and email addresses of all users.
- CVE-2021-42639Medium
Reflected XSS vulnerability in PrinterLogic Web Stack versions 19.1.1.13 SP9 and below. Attacker-controlled input is reflected back in the page without sanitization.
- CVE-2021-42633Medium
SQL Injection vulnerability in PrinterLogic Web Stack versions 19.1.1.13 SP9 and below allows an attacker to inject malicious SQL code, potentially gaining unauthorized access to additional audit records.
Original NVD description (English source)
PrinterLogic Web Stack versions 19.1.1.13 SP9 and below use user-controlled input to craft a URL, resulting in a Server Side Request Forgery (SSRF) vulnerability.

