CVE-2021-37593: PEEL Shopping version 9.4.0 allows remote SQL injection. A public user/guest (unauthenticated) can inject a malicious SQL query in order to affect the…

PriorityP267critical9.1CVSS 3.1

AVNACLPRNUINSUCHIHAN

EXPLOIT

EPSS

5.16%

91.4th percentile

PEEL Shopping version 9.4.0 allows remote SQL injection. A public user/guest (unauthenticated) can inject a malicious SQL query in order to affect the execution of predefined SQL commands. Upon a successful SQL injection attack, an attacker can read sensitive data from the database and possibly modify database data.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
peel	peel_shopping	—	—

Detection & IOCsextracted from sources · hover to see the quote

path/peel-shopping_9_4_0/achat/produit_details.php↗

command(SELECT+1337+FROM+(SELECT(SLEEP(7-(IF(DATABASE()+LIKE+0x257065656c25,0,5)))))FSXX)↗

command(SELECT+1337+FROM+(SELECT(SLEEP(5-(IF(VERSION()+LIKE+0x254d61726961444225,0,5)))))FSXX)↗

command(SELECT+1337+FROM+(SELECT(SLEEP(10-(IF(EXISTS(SELECT+3+FROM+peel.peel_produits),0,5)))))FSXX)↗

→Monitor GET requests to produit_details.php where the 'id' parameter contains SQL time-based blind injection patterns, specifically SLEEP() calls wrapped in SELECT subqueries (e.g., SELECT+1337+FROM+(SELECT(SLEEP(...)))). ↗
→Alert on anomalous HTTP response times (7+ seconds) from produit_details.php, which is indicative of successful time-based blind SQL injection causing deliberate SLEEP delays. ↗
→Look for hex-encoded strings in the 'id' parameter of produit_details.php, such as 0x257065656c25 (hex for '%peel%') or 0x254d61726961444225 (hex for '%MariaDB%'), used to fingerprint the database via blind SQLi. ↗
→Unauthenticated (no session/auth cookie required) requests to produit_details.php with parenthesized SELECT payloads in the id parameter should be flagged; the exploit works as a public guest user. ↗

·The PoC payloads assume the default PEEL Shopping database name is 'peel' and the default table name is 'peel_produits'. Installations with non-default database/table names will require adjusted payloads, but the vulnerable endpoint and parameter remain the same. ↗
·The vulnerability affects PEEL Shopping versions prior to 9.4.0.1. Version 9.4.0 is listed as vulnerable in NVD; the fix was released in 9.4.0.1. ↗

CVSS provenance

nvdv3.19.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

nvdv2.06.4MEDIUMAV:N/AC:L/Au:N/C:P/I:P/A:N

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