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IbmCVE-2021-20501

HistoryApr 21, 2021 - 12:15 p.m.

CVE-2021-20501

2021-04-2112:15:08

ibm

web.nvd.nist.gov

ibm

ibm i

smtp

network attacker

vulnerability

spam email

nvd

cve-2021-20501

CVSS2

6.4

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.2

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

HIGH

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

AI Score

7.8

Confidence

High

EPSS

0.001

Percentile

47.8%

JSON

IBM i 7.1, 7.2, 7.3, and 7.4 SMTP allows a network attacker to send emails to non-existent local-domain recipients to the SMTP server, caused by using a non-default configuration. An attacker could exploit this vulnerability to consume unnecessary network bandwidth and disk space, and allow remote attackers to send spam email. IBM X-Force ID: 198056.

Affected configurations

Nvd

Vulners

Node

ibmiMatch7.1

ibmiMatch7.2

ibmiMatch7.3

ibmiMatch7.4

VendorProductVersionCPE
ibmi7.1cpe:2.3:o:ibm:i:7.1:*:*:*:*:*:*:*
ibmi7.2cpe:2.3:o:ibm:i:7.2:*:*:*:*:*:*:*
ibmi7.3cpe:2.3:o:ibm:i:7.3:*:*:*:*:*:*:*
ibmi7.4cpe:2.3:o:ibm:i:7.4:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
ibm	i	7.1	cpe:2.3:o:ibm:i:7.1:::::::*
ibm	i	7.2	cpe:2.3:o:ibm:i:7.2:::::::*
ibm	i	7.3	cpe:2.3:o:ibm:i:7.3:::::::*
ibm	i	7.4	cpe:2.3:o:ibm:i:7.4:::::::*

CNA Affected

[
  {
    "product": "i",
    "vendor": "IBM",
    "versions": [
      {
        "status": "affected",
        "version": "7.1"
      },
      {
        "status": "affected",
        "version": "7.2"
      },
      {
        "status": "affected",
        "version": "7.3"
      },
      {
        "status": "affected",
        "version": "7.4"
      }
    ]
  }
]

References

exchange.xforce.ibmcloud.com/vulnerabilities/198056

www.ibm.com/support/pages/node/6445505

CVSS2

6.4

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.2

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

HIGH

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

AI Score

7.8

Confidence

High

EPSS

0.001

Percentile

47.8%

JSON

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