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)…
Published 18 y ago · modified 4 mo ago · JSON
Summary
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.
Exploit prediction (EPSS)
1.67% probability of exploitation in the next 30 days, higher than 77% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Classification
- Weakness
- CWE-330 Use of Insufficiently Random Values
References
- securityfocus.com /archive/1/491127/100/0/threaded · mailing-list, x_refsource_BUGTRAQ, x_transferred
- securityreason.com /securityalert/3834 · third-party-advisory, x_refsource_SREASON, x_transferred
- exchange.xforce.ibmcloud.com /vulnerabilities/42152 · vdb-entry, x_refsource_XF, x_transferred
- securityfocus.com /bid/28877 · vdb-entry, x_refsource_BID, x_transferred
- rooksecurity.com /blog/?p=6 · x_refsource_MISC, x_transferred
Sources
- CVE List: CVE-2008-2020
- NVD: CVE-2008-2020
vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.