CVE-2008-2020 The CAPTCHA implementation as used in (1) Francisco Burzi PHP-Nuke 7.0 and 8.1, (2) my123tkShop e-Commerce-Suite (aka 123tkShop) 0.9.1, (3) phpMyBitTorrent 1.2.2, (4) TorrentFlux 2.3, (5) e107 0.7.11,...
HighCVSS 7.5
EPSS 1.7%
- Published
- Updated
- Exploit status
- No public exploit known
Description
The CAPTCHA implementation as used in (1) Francisco Burzi PHP-Nuke 7.0 and 8.1, (2) my123tkShop e-Commerce-Suite (aka 123tkShop) 0.9.1, (3) phpMyBitTorrent 1.2.2, (4) TorrentFlux 2.3, (5) e107 0.7.11, (6) WebZE 0.5.9, (7) Open Media Collectors Database (aka OpenDb) 1.5.0b4, and (8) Labgab 1.1 uses a code_bg.jpg background image and the PHP ImageString function in a way that produces an insufficient number of different images, which allows remote attackers to pass the CAPTCHA test via an automated attack using a table of all possible image checksums and their corresponding digit strings.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| e107 | = 0.7.11 | No fix listed |
| labgab | = 1.1 | No fix listed |
| my123tkshop e-commerce-suite | = 0.9.1 | No fix listed |
| opendb | = 1.5.0-beta4 | No fix listed |
| phpmybittorrent | = 1.2.2 | No fix listed |
| phpnuke php-nuke | = 7.0 | No fix listed |
| phpnuke php-nuke | = 8.1 | No fix listed |
| torrentflux project torrentflux | = 2.3 | No fix listed |
| webze | = 0.5.9 | No fix listed |
References
- 3834 broken-link third-party-advisory
- www.rooksecurity.com broken-link
- 20080419 Deciphering the PHP-Nuke Capthca broken-link mailing-list third-party-advisory vdb-entry
- 28877 broken-link third-party-advisory vdb-entry
- captcha-imagestring-codebg-weak-security(42152) third-party-advisory vdb-entry