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.
References (5)
Core 5
Core References
Broken Link, Third Party Advisory, VDB Entry mailing-list
x_refsource_bugtraq
http://www.securityfocus.com/archive/1/491127/100/0/threaded
Broken Link third-party-advisory
x_refsource_sreason
http://securityreason.com/securityalert/3834
Third Party Advisory, VDB Entry vdb-entry
x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/42152
Broken Link, Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/28877
Broken Link x_refsource_misc
http://www.rooksecurity.com/blog/?p=6
Scores
CVSS v3
7.5
EPSS
0.0167
EPSS Percentile
73.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Details
CWE
CWE-330
Status
published
Products (9)
e107/e107
0.7.11
labgab/labgab
1.1
my123tkshop/e-commerce-suite
0.9.1
opendb/opendb
1.5.0 beta4
phpmybittorrent/phpmybittorrent
1.2.2
phpnuke/php-nuke
7.0
phpnuke/php-nuke
8.1
torrentflux_project/torrentflux
2.3
webze/webze
0.5.9
Published
Apr 30, 2008
Tracked Since
Feb 18, 2026