CVE-2025-6142 Overview
CVE-2025-6142 is a Server-Side Request Forgery (SSRF) vulnerability affecting Intera InHire versions up to 20250530. The flaw resides in an unspecified functionality where manipulation of the 29chcotoo9 argument allows an attacker to coerce the server into issuing arbitrary outbound requests. The issue is classified under [CWE-918]. The vulnerability is exploitable remotely over the network and requires low-privilege authentication. The exploit has been publicly disclosed, and according to the disclosure record the vendor did not respond to early notification attempts.
Critical Impact
Authenticated remote attackers can abuse the affected parameter to issue server-side requests to internal or external resources, potentially exposing internal services and metadata endpoints.
Affected Products
- Intera InHire versions up to and including 20250530
- Deployments exposing the vulnerable functionality to authenticated network users
- Any integration relying on the affected 29chcotoo9 parameter handler
Discovery Timeline
- 2025-06-16 - CVE-2025-6142 published to the National Vulnerability Database (NVD)
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-6142
Vulnerability Analysis
The vulnerability is a Server-Side Request Forgery (SSRF) flaw in Intera InHire. An authenticated attacker submits crafted input in the 29chcotoo9 argument, causing the application to fetch attacker-controlled URLs from the server context. SSRF conditions of this type allow attackers to reach internal services, cloud metadata endpoints, or third-party systems that are not directly reachable from the public internet. The disclosure notes that the exploit is publicly available, increasing opportunistic scanning risk. According to the EPSS data (0.293% probability), broad in-the-wild exploitation has not yet been observed at scale, though public availability of the technique may drive that number upward.
Root Cause
The root cause is insufficient validation and filtering of user-controlled input that is subsequently used to construct outbound requests. The application accepts the 29chcotoo9 value without enforcing an allowlist of destinations or blocking access to internal address ranges such as 127.0.0.0/8, 169.254.169.254, or RFC1918 space. This falls squarely within [CWE-918]: Server-Side Request Forgery.
Attack Vector
Exploitation is performed remotely over the network. The attacker must hold valid low-privilege credentials to reach the affected functionality. Once authenticated, the attacker supplies a crafted URL in the 29chcotoo9 argument, and the server issues the outbound request on behalf of the attacker. Public references, including the disclosure document and VulDB entry #312613, describe the manipulation pattern.
No verified proof-of-concept code is available in structured form. See the public disclosure document and the VulDB CTI entry for reproduction details.
Detection Methods for CVE-2025-6142
Indicators of Compromise
- Outbound HTTP or HTTPS requests originating from the InHire application server to internal IP ranges or cloud metadata endpoints such as 169.254.169.254
- Unexpected DNS lookups from the application host referencing attacker-controlled domains
- Application logs showing repeated requests containing the 29chcotoo9 parameter with URL-formatted values
Detection Strategies
- Inspect web application and reverse proxy logs for requests carrying the 29chcotoo9 argument with values pointing to non-business URLs
- Correlate authentication events with subsequent anomalous outbound connections from the application server
- Deploy egress monitoring to flag application traffic destined for private RFC1918 networks or link-local metadata addresses
Monitoring Recommendations
- Enable verbose access logging on the InHire application and forward events to a centralized analytics platform for retention and querying
- Alert on any application-initiated connection to cloud instance metadata services
- Track authenticated session activity for accounts that suddenly generate high volumes of parameter-based URL submissions
How to Mitigate CVE-2025-6142
Immediate Actions Required
- Restrict network egress from the InHire application server to only required destinations using host or network firewall rules
- Enforce authentication controls and audit low-privilege accounts capable of reaching the affected functionality
- Block outbound access from the application host to cloud metadata endpoints and internal management interfaces
Patch Information
No vendor patch is documented in the available advisory data. The disclosure record indicates the vendor was contacted but did not respond. Operators should monitor the VulDB entry and vendor channels for updated guidance and consider compensating controls until a fix is released.
Workarounds
- Place the application behind an egress proxy that enforces an allowlist of permitted outbound destinations
- Implement URL validation at the network boundary to reject requests targeting internal address spaces including 127.0.0.0/8, 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16, and 169.254.0.0/16
- Disable or restrict access to the affected functionality until a vendor patch is available
# Example iptables egress restriction blocking metadata and RFC1918 destinations
iptables -A OUTPUT -d 169.254.169.254 -j DROP
iptables -A OUTPUT -d 10.0.0.0/8 -j DROP
iptables -A OUTPUT -d 172.16.0.0/12 -j DROP
iptables -A OUTPUT -d 192.168.0.0/16 -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
