CVE-2025-59739: Andsoft E-tms RCE Vulnerability

CVE-2025-59739 Overview

CVE-2025-59739 is an operating system command injection vulnerability in AndSoft's e-TMS v25.03. The flaw resides in the /clt/LOGINFRM_original.ASP endpoint, where the m parameter is passed unsanitized into an operating system command context. An unauthenticated attacker can submit a crafted POST request to execute arbitrary commands on the server hosting the application. The vulnerability is tracked under [CWE-77] and [CWE-78] and carries a CVSS v4.0 base score of 9.3.

Critical Impact
Unauthenticated remote attackers can execute arbitrary operating system commands on the e-TMS application server, leading to full host compromise.

Affected Products

AndSoft e-TMS v25.03
Deployments exposing /clt/LOGINFRM_original.ASP to untrusted networks
Transport management workflows relying on the affected ASP login form

Discovery Timeline

2025-10-02 - CVE-2025-59739 published to NVD
2025-10-02 - Last updated in NVD database
2025-09-24 - INCIBE published security notice covering multiple vulnerabilities in AndSoft's e-TMS

Technical Details for CVE-2025-59739

Vulnerability Analysis

The vulnerability is an operating system command injection in the /clt/LOGINFRM_original.ASP resource of AndSoft e-TMS v25.03. The m parameter accepted in POST requests is concatenated into a command string that is executed by the underlying operating system shell. Because the application does not sanitize or validate the parameter, attacker-supplied metacharacters break out of the intended command context. Successful exploitation grants the attacker code execution with the privileges of the web application process.

The attack requires no authentication, no user interaction, and is reachable over the network. Confidentiality, integrity, and availability are all rated High in the CVSS v4.0 vector. Refer to the INCIBE Security Notice for vendor context.

Root Cause

The root cause is missing input validation and neutralization of special elements used in OS commands ([CWE-78]). The m parameter flows from an HTTP POST body into a command execution sink without escaping, quoting, or allowlist validation. Standard shell metacharacters such as ;, |, &, and backticks are interpreted by the underlying shell, enabling attacker-controlled command chaining.

Attack Vector

An attacker sends a single POST request to /clt/LOGINFRM_original.ASP containing a malicious value in the m parameter. The server's ASP handler passes the value into a shell command, executing attacker-controlled instructions. No credentials or prior access to the application are required. The attacker can use the foothold to deploy webshells, exfiltrate transport management data, or pivot deeper into the network.

No public proof-of-concept exploit was available at the time of publication. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog.

Detection Methods for CVE-2025-59739

Indicators of Compromise

POST requests to /clt/LOGINFRM_original.ASP containing shell metacharacters (;, |, &, `, $() in the m parameter.
Unexpected child processes spawned by the IIS worker process (w3wp.exe) or ASP scripting host on the e-TMS server.
Outbound network connections from the web server to unfamiliar hosts shortly after requests to the affected endpoint.
Creation of new files in web-accessible directories or scheduled tasks immediately following requests to LOGINFRM_original.ASP.

Detection Strategies

Inspect web server logs for POST requests targeting /clt/LOGINFRM_original.ASP and flag any m parameter containing non-alphanumeric payloads.
Apply EDR behavioral rules that alert on command interpreters (cmd.exe, powershell.exe) launched as children of the IIS worker process.
Correlate web access logs with process creation events to identify request-to-execution chains tied to the affected URL.

Monitoring Recommendations

Forward IIS, ASP, and Windows process telemetry to a centralized analytics platform for retrospective hunting against the affected endpoint.
Alert on first-seen process lineages originating from the e-TMS application pool identity.
Monitor for credential dumping tools, archive utilities, or LOLBins executed on the e-TMS server following access to LOGINFRM_original.ASP.

How to Mitigate CVE-2025-59739

Immediate Actions Required

Restrict network access to the e-TMS application, especially the /clt/LOGINFRM_original.ASP endpoint, to trusted management networks until a vendor fix is applied.
Deploy a web application firewall rule that blocks shell metacharacters in the m POST parameter.
Review web server and process logs for prior exploitation indicators dating back to before the CVE publication date.
Rotate credentials and secrets stored on or accessible from the e-TMS server if compromise is suspected.

Patch Information

No vendor patch or fixed version was referenced in the NVD record at the time of publication. Consult the INCIBE Security Notice and contact AndSoft directly for the latest remediation guidance and an updated build of e-TMS.

Workarounds

Remove or rename the LOGINFRM_original.ASP file if it is not required for production operation.
Place the e-TMS application behind a reverse proxy that enforces strict allowlisting of the m parameter to safe character classes.
Run the IIS application pool under a least-privilege service account with no local administrator rights and no outbound internet access.
Enable application-layer logging with full request bodies to support investigation and incident response.

bash

# Example WAF rule (ModSecurity) to block shell metacharacters in the 'm' parameter
SecRule REQUEST_URI "@contains /clt/LOGINFRM_original.ASP" \
    "chain,phase:2,deny,status:403,id:1059739,msg:'Block CVE-2025-59739 command injection attempt'"
    SecRule ARGS:m "@rx [;&|`$()<>\\]" "t:none"