CVE-2009-1936 advisory

Advisory generated from the CVE record, CISA, Exploit Observer and VEDAS: what it is, whether it is exploited, who is affected, and how to fix and detect it.

What it is

_functions.php in cpCommerce 1.2.x, possibly including 1.2.9, sends a redirect but does not exit when it is called directly, which allows remote attackers to bypass a protection mechanism to conduct remote file inclusion and directory traversal attacks, execute arbitrary PHP code, or read arbitrary files via the GLOBALS[prefix] parameter, a different vector than CVE-2003-1500.

Description quoted from the CVE record (assigned by mitre, published 2009-06-05).

Weakness: CWE-22 Improper Limitation of a Pathname to a Restricted Directory (‘Path Traversal’)

How it can be exploited

Exploitable over the network with low attack complexity needing no privileges and no user interaction. Impact: confidentiality high, integrity high, availability high. CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA assessment (SSVC): CISA assesses that a public proof of concept exists. Automatable: yes. Technical impact: total.

Public exploit evidence (Exploit Observer)

Exploit Observer found 1 Exploit-DB entry and 5 code repositories naming this CVE.

Exploit-DB 8790

Code repositories that name a CVE are often scanners, copies or fakes, and some are malware. Read the code before running anything.

See all 10 references on Exploit Observer

Live scores

EPSS: 0.519
very likely to be attacked soon
VEDAS: 0.989
strong exploit evidence
On CISA KEV: Not listed
Detection rule: Nuclei · Suricata

Who is affected

Product	Affected	Not affected
Not stated	versions not stated in the record	Not stated

Version ranges exactly as the CVE record states them. “Before X” means X is the first fixed version.

How to fix it

No fixed version or vendor advisory is listed in the CVE record yet. Watch the vendor’s security page.

How to detect it

Nuclei template (active check)

CPCommerce - Path Traversal
_functions.php in cpCommerce 1.2.x, possibly including 1.2.9, sends a redirect but does not exit when it is called directly, which allows remote attackers to bypass a protection mechanism to conduct remote file inclusion and directory traversal attacks, execute arbitrary PHP code, or read arbitrary files via the GLOBALS[prefix] parameter, a different vector than CVE-2003-1500.

Name and description quoted from the template, written by VEDAS.

The template sends 1 request (GET /_functions.php?GLOBALS[prefix]=../../../../../../../../../../etc/p...); it decides using regex, status matchers. Severity in the template: high. Marked as not yet verified against a live vulnerable target.

Run it against a host you own or are authorised to test:

bash

nuclei -u https://your-host -t CVE-2009-1936.yaml

Show the template (33 lines)

yaml

id: CVE-2009-1936

info:
  name: "CPCommerce - Path Traversal"
  author: vedas-arpsyndicate
  severity: high
  description: |
    _functions.php in cpCommerce 1.2.x, possibly including 1.2.9, sends a redirect but does not exit when it is called directly, which allows remote attackers to bypass a protection mechanism to conduct remote file inclusion and directory traversal attacks, execute arbitrary PHP code, or read arbitrary files via the GLOBALS[prefix] parameter, a different vector than CVE-2003-1500.
  reference:
    - https://www.exploit.observer/?keyword=CVE-2009-1936&match=exact
    - https://subdomain.center/?engine=ammonites&keyword=cpcommerce&match=exact
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cve-id: CVE-2009-1936
    cwe-id: CWE-22
  metadata:
    verified: false
    max-request: 1
  tags: cve,cve2009,cpcommerce,lfi

http:
  - method: GET
    path:
      - "{{BaseURL}}/_functions.php?GLOBALS[prefix]=../../../../../../../../../../etc/passwd"
    matchers-condition: and
    matchers:
      - type: regex
        part: body
        regex:
          - 'root:.*:0:0:' 
      - type: status
        status:
          - 200

CVE-2009-1936.yaml on GitHub

Suricata rules (network detection)

1 rule that alert on traffic matching this exploit: VEDAS CVE-2009-1936 CPCommerce - Path Traversal. Add them to your Suricata rule set and reload.

Show the rules

suricata

alert http $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"VEDAS CVE-2009-1936 CPCommerce - Path Traversal"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"_functions.php"; nocase; fast_pattern; content:"GLOBALS[prefix]="; nocase; content:"etc/passwd"; nocase; classtype:web-application-attack; reference:cve,CVE-2009-1936; reference:url,https://www.exploit.observer/?keyword=CVE-2009-1936&match=exact; reference:url,https://subdomain.center/?engine=ammonites&keyword=cpcommerce&match=exact; sid:1011828; rev:1;)

CVE-2009-1936.rules on GitHub

References

Exploit code

8790 (exploit, x_refsource_EXPLOIT-DB)

Technical analysis and advisories

35245 (third-party-advisory, x_refsource_SECUNIA)

Other references

35103 (vdb-entry, x_refsource_BID)

Other databases

Where this comes from

This advisory is generated automatically by VEDAS from: CVE.org record, cve-scores (EPSS and VEDAS), Exploit Observer, vedas-signatures. Text in quotes is reproduced from the source; everything else is a fixed template filled with source fields. Nothing here is written by a language model. Check the vendor advisory before acting, and read how VEDAS and Exploit Observer work, and their limits.