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JpcertCVE-2021-20837

HistoryOct 26, 2021 - 6:15 a.m.

CVE-2021-20837

2021-10-2606:15:06

CWE-78

jpcert

web.nvd.nist.gov

cve

movable type

remote execution

os command

vulnerability

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.6

Confidence

High

EPSS

0.968

Percentile

99.7%

JSON

Movable Type 7 r.5002 and earlier (Movable Type 7 Series), Movable Type 6.8.2 and earlier (Movable Type 6 Series), Movable Type Advanced 7 r.5002 and earlier (Movable Type Advanced 7 Series), Movable Type Advanced 6.8.2 and earlier (Movable Type Advanced 6 Series), Movable Type Premium 1.46 and earlier, and Movable Type Premium Advanced 1.46 and earlier allow remote attackers to execute arbitrary OS commands via unspecified vectors. Note that all versions of Movable Type 4.0 or later including unsupported (End-of-Life, EOL) versions are also affected by this vulnerability.

Affected configurations

Nvd

Node

sixapartmovable_typeRange≤1.46premium

sixapartmovable_typeRange≤1.46premium_advanced

sixapartmovable_typeRange4.0–6.3.11

sixapartmovable_typeRange6.5.0–6.8.2-

sixapartmovable_typeRange6.5.0–6.8.2advanced

sixapartmovable_typeRange7.0–7.8.1-

sixapartmovable_typeRange7.0–7.8.1advanced

VendorProductVersionCPE
sixapartmovable_type*cpe:2.3:a:sixapart:movable_type:*:*:*:*:premium:*:*:*
sixapartmovable_type*cpe:2.3:a:sixapart:movable_type:*:*:*:*:premium_advanced:*:*:*
sixapartmovable_type*cpe:2.3:a:sixapart:movable_type:*:*:*:*:*:*:*:*
sixapartmovable_type*cpe:2.3:a:sixapart:movable_type:*:*:*:*:-:*:*:*
sixapartmovable_type*cpe:2.3:a:sixapart:movable_type:*:*:*:*:advanced:*:*:*

Vendor	Product	Version	CPE
sixapart	movable_type	*	cpe:2.3:a:sixapart:movable_type:::::premium:::*
sixapart	movable_type	*	cpe:2.3:a:sixapart:movable_type:::::premium_advanced:::*
sixapart	movable_type	*	cpe:2.3:a:sixapart:movable_type::::::::
sixapart	movable_type	*	cpe:2.3:a:sixapart:movable_type:::::-:::*
sixapart	movable_type	*	cpe:2.3:a:sixapart:movable_type:::::advanced:::*

CNA Affected

[
  {
    "product": "Movable Type",
    "vendor": "Six Apart Ltd.",
    "versions": [
      {
        "status": "affected",
        "version": "Movable Type 7 r.5002 and earlier (Movable Type 7 Series), Movable Type 6.8.2 and earlier (Movable Type 6 Series), Movable Type Advanced 7 r.5002 and earlier (Movable Type Advanced 7 Series), Movable Type Advanced 6.8.2 and earlier (Movable Type Advanced 6 Series), Movable Type Premium 1.46 and earlier, and Movable Type Premium Advanced 1.46 and earlier"
      }
    ]
  }
]