CVE-2024-9922: Teamplus Team+ Pro File Disclosure Flaw

CVE-2024-9922 Overview

CVE-2024-9922 is a path traversal vulnerability in Team+ from TEAMPLUS TECHNOLOGY. The application fails to properly validate a specific page parameter. Unauthenticated remote attackers can exploit this flaw to read arbitrary files from the underlying system.

The weakness is classified under [CWE-23] Relative Path Traversal. Successful exploitation discloses sensitive system files without requiring credentials or user interaction. The vulnerability affects the Team+ Pro product deployed in private cloud environments.

Critical Impact
Unauthenticated remote attackers can read arbitrary system files on affected Team+ Pro deployments, exposing configuration data, credentials, and sensitive business information.

Affected Products

Teamplus Team+ Pro (private cloud deployment)
CPE: cpe:2.3:a:teamplus:team\+_pro:*:*:*:*:private_cloud:android:*:*
All versions prior to the vendor-supplied fix

Discovery Timeline

2024-10-14 - CVE-2024-9922 published to NVD
2024-10-24 - Last updated in NVD database

Technical Details for CVE-2024-9922

Vulnerability Analysis

The vulnerability resides in Team+ Pro's handling of a specific page parameter passed in HTTP requests. The application does not sanitize or canonicalize user-supplied input before constructing file paths. Attackers can supply traversal sequences such as ../ to escape the intended directory and reach arbitrary files on the host operating system.

Because the endpoint is reachable over the network and requires no authentication, exploitation requires only the ability to send HTTP requests to the Team+ Pro service. The impact is confined to confidentiality. Integrity and availability are not directly affected, but exposed credentials or session material can enable follow-on attacks.

TW-CERT issued the coordinated advisory tracking this issue. Refer to the TW-CERT Security Advisory for vendor-provided details.

Root Cause

The root cause is improper input validation on a page parameter that is used to construct a file path. The application accepts relative path components and does not enforce an allow-list of permitted resources. This maps to [CWE-23] Relative Path Traversal.

Attack Vector

An unauthenticated attacker sends a crafted HTTP request to the vulnerable endpoint. The request includes traversal sequences in the page parameter to reference files outside the web root. The server resolves the path, reads the targeted file, and returns its contents in the HTTP response. See the TW-CERT Incident Report for additional technical context.

Detection Methods for CVE-2024-9922

Indicators of Compromise

HTTP requests to Team+ Pro endpoints containing ../, ..\, URL-encoded %2e%2e%2f, or double-encoded traversal sequences in page parameters
Web server access logs showing successful responses (HTTP 200) for requests referencing OS files such as /etc/passwd, /etc/shadow, or Windows configuration files
Unexpected outbound data volume from the Team+ Pro application server following request spikes from a single source IP

Detection Strategies

Inspect web access logs for the Team+ Pro application and alert on path traversal patterns within query string or POST body parameters
Deploy web application firewall (WAF) signatures that block known directory traversal payloads against the Team+ Pro service
Correlate authentication-less requests to sensitive endpoints with anomalous response sizes to identify file disclosure attempts

Monitoring Recommendations

Enable verbose HTTP request logging on reverse proxies fronting Team+ Pro and ship logs to a centralized SIEM for retention and search
Monitor file access audit events on the application server for reads of system files by the Team+ Pro service account
Establish a baseline of normal page parameter values and alert on deviations containing path separators or encoded traversal sequences

How to Mitigate CVE-2024-9922

Immediate Actions Required

Restrict network access to Team+ Pro management and application endpoints to trusted networks and VPN clients only
Contact TEAMPLUS TECHNOLOGY support to obtain and apply the latest patched build of Team+ Pro
Audit web server and application logs for historical exploitation attempts targeting the vulnerable page parameter
Rotate any credentials, API keys, or secrets stored in files that may have been accessible via the Team+ Pro service account

Patch Information

TEAMPLUS TECHNOLOGY has coordinated remediation through TW-CERT. Administrators should consult the TW-CERT Security Advisory for the fixed version and upgrade instructions. No public patch identifier is listed in the NVD record.

Workarounds

Deploy a WAF rule that rejects HTTP requests containing ../, ..\, or URL-encoded traversal sequences in any parameter destined for Team+ Pro
Apply OS-level file system access controls so the Team+ Pro service account cannot read sensitive files such as /etc/shadow or private key stores
Place the Team+ Pro service behind an authenticated reverse proxy to prevent unauthenticated requests from reaching the vulnerable endpoint

bash

# Example ModSecurity rule to block path traversal in HTTP parameters
SecRule ARGS "@rx (\.\./|\.\.\\|%2e%2e%2f|%2e%2e/|\.\.%2f)" \
    "id:1009922,\
    phase:2,\
    deny,\
    status:403,\
    msg:'CVE-2024-9922 Team+ Pro path traversal attempt blocked',\
    severity:'CRITICAL'"