PT-2020-16685 · Opensips · Opensis Community Edition

Oliver Matula · Published 2020-12-04 · Updated 2021-07-21 · CVE-2020-27408

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions OpenSIS Community Edition versions through 7.6

Description The issue is related to incorrect access controls for the file ResetUserInfo.php, allowing an unauthenticated attacker to change the password of arbitrary users.

Recommendations For OpenSIS Community Edition versions through 7.6, consider restricting access to the ResetUserInfo.php file until a proper fix is applied. As a temporary workaround, restrict access to the vulnerable file to minimize the risk of exploitation.

Exploit

Fix

Improper Authentication

Weakness Enumeration

CWE-287

CWE-640

Related Identifiers

CVE-2020-27408

Affected Products

Opensis Community Edition

References · 5

• 🔥 https://insinuator.net/2020/10/opensis-vulnerabilities · Exploit
• https://osv.dev/vulnerability/CVE-2020-27408 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-27408 · Security Note
• https://github.com/OS4ED/openSIS-Responsive-Design/releases · Note
• https://t.me/cibsecurity/17155 · Telegram Post