PT-2020-6845 · Yii2 Gii · Yii2 Gii

D90Pwn · Published 2020-05-08 · Updated 2023-01-30 · CVE-2020-36655

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Yii2 Gii versions prior to 2.2.2

Description The issue allows remote attackers to execute arbitrary code via the messageCategory field in Generator.php. This can be done by embedding arbitrary PHP code into the model file. The vulnerability is related to the restoration of an invalid data structure in memory, which can be exploited by a remote attacker to execute arbitrary code.

Recommendations For versions prior to 2.2.2, update to version 2.2.2 or later to resolve the issue. As a temporary workaround, consider restricting access to the Generator.php file and the messageCategory field to minimize the risk of exploitation.

Exploit

Fix

RCE

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

BDU:2023-00799

CVE-2020-36655

GHSA-3MPG-Q26J-83J5

Affected Products

Yii2 Gii

References · 9

• 🔥 https://github.com/yiisoft/yii2-gii/issues/433 · Exploit
• 🔥 https://lab.wallarm.com/yii2-gii-remote-code-execution · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-36655 · Security Note
• https://osv.dev/vulnerability/GHSA-3mpg-q26j-83j5 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-36655 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-00799 · Security Note
• https://github.com/yiisoft/yii2-gii/commit/ed61e0d85f43e23f79d7c9d1b4e5e5c09a32ce4b · Note
• https://github.com/yiisoft/yii2-gii · Note
• https://t.me/cvenotify/42620 · Telegram Post