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cvelistRapid7CVELIST:CVE-2020-7385
HistoryApr 23, 2021 - 3:35 p.m.

CVE-2020-7385 Metasploit Framework 'drb_remote_codeexec' code execution

2021-04-2315:35:19
CWE-502
rapid7
www.cve.org
18
metasploit
framework
code execution
vulnerability
drb_remote_codeexec
cve-2020-7385
deserialization issue
distributed ruby class
system compromise

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

8.7

Confidence

High

EPSS

0.004

Percentile

73.5%

By launching the drb_remote_codeexec exploit, a Metasploit Framework user will inadvertently expose Metasploit to the same deserialization issue that is exploited by that module, due to the reliance on the vulnerable Distributed Ruby class functions. Since Metasploit Framework typically runs with elevated privileges, this can lead to a system compromise on the Metasploit workstation. Note that an attacker would have to lie in wait and entice the Metasploit user to run the affected module against a malicious endpoint in a “hack-back” type of attack. Metasploit is only vulnerable when the drb_remote_codeexec module is running. In most cases, this cannot happen automatically.

CNA Affected

[
  {
    "product": "Metasploit Framework",
    "vendor": "Rapid7",
    "versions": [
      {
        "lessThanOrEqual": "6.0.15",
        "status": "affected",
        "version": "6.0.15",
        "versionType": "custom"
      }
    ]
  }
]

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

8.7

Confidence

High

EPSS

0.004

Percentile

73.5%

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