CVE-2020-8515

Scores

EPSS Score

0.9436

CVSS

3.x 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

All CVSS Scores

CVSS 4.0

0.0

CVSS 3.x

9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS 2.0

10.0

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

Description

Устройства DrayTek Vigor2960 1.3.1_Beta, Vigor3900 1.4.4_Beta и Vigor300B 1.3.3_Beta, 1.4.2.1_Beta и 1.4.4_Beta позволяют удаленно выполнять код от имени root (без аутентификации) через метасимволы оболочки в URI cgi-bin/mainfunction.cgi. Эта проблема была исправлена в Vigor3900/2960/300B версии 1.5.1.

Sources

nvd

CWEs

CWE-78

Related Vulnerabilities

BDU:2021-04387

Exploits

Exploit ID: CVE-2020-8515

Source: cisa

URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

Exploit ID: 48268

Source: exploitdb

URL: https://www.exploit-db.com/exploits/48268

Reference Links

http://packetstormsecurity.com/files/156979/DrayTek-Vigor2960-Vigor3900-Vigor300B-Remote-Command-Execution.html

https://sku11army.blogspot.com/2020/01/draytek-unauthenticated-rce-in-draytek.html

https://www.draytek.com/about/security-advisory/vigor3900-/-vigor2960-/-vigor300b-router-web-management-page-vulnerability-%28cve-2020-8515%29/

Vulnerable Software

Type: Configuration

Vendor: draytek

Product: vigor2960_firmware

Operating System: * * *

Trait:

{
  "children": [
    {
      "cpe_match": [
        {
          "cpe23uri": "cpe:2.3:o:draytek:vigor2960_firmware:1.3.1:beta:*:*:*:*:*:*",
          "vulnerable": true
        }
      ],
      "operator": "OR"
    },
    {
      "cpe_match": [
        {
          "cpe23uri": "cpe:2.3:h:draytek:vigor2960:-:*:*:*:*:*:*:*"
        }
      ],
      "operator": "OR"
    }
  ],
  "operator": "AND"
}

Source: nvd

Type: Configuration

Vendor: draytek

Product: vigor300b_firmware

Operating System: * * *

Trait:

{
  "children": [
    {
      "cpe_match": [
        {
          "cpe23uri": "cpe:2.3:o:draytek:vigor300b_firmware:1.3.3:beta:*:*:*:*:*:*",
          "vulnerable": true
        },
        {
          "cpe23uri": "cpe:2.3:o:draytek:vigor300b_firmware:1.4.2.1:beta:*:*:*:*:*:*",
          "vulnerable": true
        },
        {
          "cpe23uri": "cpe:2.3:o:draytek:vigor300b_firmware:1.4.4:beta:*:*:*:*:*:*",
          "vulnerable": true
        }
      ],
      "operator": "OR"
    },
    {
      "cpe_match": [
        {
          "cpe23uri": "cpe:2.3:h:draytek:vigor300b:-:*:*:*:*:*:*:*"
        }
      ],
      "operator": "OR"
    }
  ],
  "operator": "AND"
}

Source: nvd

Type: Configuration

Vendor: draytek

Product: vigor3900_firmware

Operating System: * * *

Trait:

{
  "children": [
    {
      "cpe_match": [
        {
          "cpe23uri": "cpe:2.3:o:draytek:vigor3900_firmware:1.4.4:beta:*:*:*:*:*:*",
          "vulnerable": true
        }
      ],
      "operator": "OR"
    },
    {
      "cpe_match": [
        {
          "cpe23uri": "cpe:2.3:h:draytek:vigor3900:-:*:*:*:*:*:*:*"
        }
      ],
      "operator": "OR"
    }
  ],
  "operator": "AND"
}

Source: nvd