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amazonAmazonALAS2-2022-1873
HistoryOct 31, 2022 - 7:40 p.m.

Important: rsync

2022-10-3119:40:00
alas.aws.amazon.com
21

7.4 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.7 High

AI Score

Confidence

High

4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

HIGH

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

39.8%

Issue Overview:

A flaw was found in rsync that is triggered by a victim rsync user/client connecting to a malicious rsync server. The server can copy and overwrite arbitrary files in the client’s rsync target directory and subdirectories. This flaw allows a malicious server, or in some cases, another attacker who performs a man-in-the-middle attack, to potentially overwrite sensitive files on the client machine, resulting in further exploitation. (CVE-2022-29154)

Affected Packages:

rsync

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 rsync to update your system.

New Packages:

aarch64:  
    rsync-3.1.2-11.amzn2.0.1.aarch64  
    rsync-debuginfo-3.1.2-11.amzn2.0.1.aarch64  
  
i686:  
    rsync-3.1.2-11.amzn2.0.1.i686  
    rsync-debuginfo-3.1.2-11.amzn2.0.1.i686  
  
src:  
    rsync-3.1.2-11.amzn2.0.1.src  
  
x86_64:  
    rsync-3.1.2-11.amzn2.0.1.x86_64  
    rsync-debuginfo-3.1.2-11.amzn2.0.1.x86_64  

Additional References

Red Hat: CVE-2022-29154

Mitre: CVE-2022-29154

7.4 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.7 High

AI Score

Confidence

High

4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

HIGH

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

39.8%