CVE-2021-21705

Advisory lineage Upstream: 0 Downstream: 19
Modified
Published: 04 Oct 2021, 04:00
Last modified:17 Sept 2024, 04:09

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
5.3 MEDIUM
v3.1 (nvd)
EPSS Score
0.29% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

04 Oct 2021, 04:00
Published
Vulnerability first disclosed
17 Sept 2024, 04:09
Last Modified
Vulnerability information updated

Description

In PHP versions 7.3.x below 7.3.29, 7.4.x below 7.4.21 and 8.0.x below 8.0.8, when using URL validation functionality via filter_var() function with FILTER_VALIDATE_URL parameter, an URL with invalid password field can be accepted as valid. This can lead to the code incorrectly parsing the URL and potentially leading to other security implications - like contacting a wrong server or making a wrong access decision.

CVSS Metrics

  • v3.1•MEDIUM•Score: 4.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  • v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:P/A:N

EPSS Trends

Current EPSS score: 0.29%• Percentile: 53%

Techniques & Countermeasures

  • CWE-20•Improper Input Validation

    The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Affected Systems

  • netapp•clustered_data_ontap

    na

  • oracle•sd-wan_aware

    8.2

  • Unknown•PHP

    ≥ 7.3.x, < 7.3.29 | ≥ 7.4.x, < 7.4.21 | ≥ 8.0.X, < 8.0.8

  • Unknown•PHP

    ≥ 7.3.0, < 7.3.29 | ≥ 7.4.0, < 7.4.21 | ≥ 8.0.0, < 8.0.8

References (4)