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amazonAmazonALAS2-2023-2147
HistoryJul 17, 2023 - 5:40 p.m.

Medium: mc

2023-07-1717:40:00
alas.aws.amazon.com
2
midnight commander
sftp
connection
fingerprint
verification
vulnerability
amazon linux
update
cve-2021-36370
red hat
mitre
unix

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

0.004 Low

EPSS

Percentile

73.2%

Issue Overview:

An issue was discovered in Midnight Commander through 4.8.26. When establishing an SFTP connection, the fingerprint of the server is neither checked nor displayed. As a result, a user connects to the server without the ability to verify its authenticity. (CVE-2021-36370)

Affected Packages:

mc

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update mc to update your system.

New Packages:

aarch64:  
    mc-4.8.29-1.amzn2.aarch64  
    mc-debuginfo-4.8.29-1.amzn2.aarch64  
  
i686:  
    mc-4.8.29-1.amzn2.i686  
    mc-debuginfo-4.8.29-1.amzn2.i686  
  
src:  
    mc-4.8.29-1.amzn2.src  
  
x86_64:  
    mc-4.8.29-1.amzn2.x86_64  
    mc-debuginfo-4.8.29-1.amzn2.x86_64  

Additional References

Red Hat: CVE-2021-36370

Mitre: CVE-2021-36370

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

0.004 Low

EPSS

Percentile

73.2%