Vulnerability · Published Aug 10, 2021 · Assigned by @huntrdev
CVE-2021-3689Use of Predictable Algorithm in Random Number Generator in yiisoft/yii2
High 8.1
In plain English
A high-severity security flaw in yiisoft/yii2 from yiisoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.9% (higher than 80% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.0)8.1High
Exploit odds (30 days)1.9%top 20.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
yii2 is vulnerable to Use of Predictable Algorithm in Random Number Generator
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | yiisoft/yii2-dev | 2.0.43 | GHSA-hq3v-rg6f-6hx4 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| yiisoft | yiisoft/yii2 | unspecified – through 2.0.42.1 |
Weakness: CWE-1241 · Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://huntr.dev/bounties/50aad1d4-eb00-4573-b8a4-dbe38e2c229f x_refsource_CONFIRM
- https://github.com/yiisoft/yii2/commit/13f27e4d920a05d53236139e8b07007acd046a46 x_refsource_MISC