PT-2021-17733 · Unknown · Group-Office

Fatih Çelik · Published 2021-04-14 · Updated 2021-04-19 · CVE-2021-28060

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions: Group Office version 6.4.196

Description: A Server-Side Request Forgery (SSRF) issue allows a remote attacker to forge GET requests to arbitrary URLs via the url parameter to "group/api/upload.php" API endpoint.

Recommendations: For Group Office version 6.4.196, as a temporary workaround, consider restricting access to the "group/api/upload.php" API endpoint until a patch is available. Avoid using the url parameter in this endpoint to minimize the risk of exploitation.

Exploit

Fix

SSRF

Weakness Enumeration

CWE-918

Related Identifiers

CVE-2021-28060

Affected Products

Group-Office

References · 4

• 🔥 https://fatihhcelik.blogspot.com/2020/12/group-office-crm-ssrf.html · Exploit
• 🔥 https://fatihhcelik.github.io/posts/Group-Office-CRM-SSRF · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-28060 · Security Note
• https://osv.dev/vulnerability/CVE-2021-28060 · Vendor Advisory