Lucene search

K
amazonAmazonALAS-2020-1451
HistoryNov 14, 2020 - 1:23 a.m.

Medium: ruby24

2020-11-1401:23:00
alas.aws.amazon.com
16

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

5 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.003 Low

EPSS

Percentile

69.0%

Issue Overview:

An issue was discovered in Ruby through 2.5.8, 2.6.x through 2.6.6, and 2.7.x through 2.7.1. WEBrick, a simple HTTP server bundled with Ruby, had not checked the transfer-encoding header value rigorously. An attacker may potentially exploit this issue to bypass a reverse proxy (which also has a poor header check), which may lead to an HTTP Request Smuggling attack. (CVE-2020-25613)

Affected Packages:

ruby24

Issue Correction:
Run yum update ruby24 to update your system.

New Packages:

i686:  
    rubygem24-net-telnet-0.1.1-2.13.amzn1.i686  
    ruby24-devel-2.4.10-2.13.amzn1.i686  
    rubygem24-psych-2.2.2-2.13.amzn1.i686  
    ruby24-debuginfo-2.4.10-2.13.amzn1.i686  
    ruby24-libs-2.4.10-2.13.amzn1.i686  
    rubygem24-xmlrpc-0.2.1-2.13.amzn1.i686  
    ruby24-2.4.10-2.13.amzn1.i686  
    rubygem24-json-2.0.4-2.13.amzn1.i686  
    rubygem24-bigdecimal-1.3.2-2.13.amzn1.i686  
    rubygem24-io-console-0.4.6-2.13.amzn1.i686  
  
noarch:  
    ruby24-doc-2.4.10-2.13.amzn1.noarch  
    rubygems24-2.6.14.4-2.13.amzn1.noarch  
    rubygem24-rdoc-5.0.1-2.13.amzn1.noarch  
    rubygem24-power_assert-0.4.1-2.13.amzn1.noarch  
    rubygem24-minitest5-5.10.1-2.13.amzn1.noarch  
    rubygems24-devel-2.6.14.4-2.13.amzn1.noarch  
    ruby24-irb-2.4.10-2.13.amzn1.noarch  
    rubygem24-did_you_mean-1.1.0-2.13.amzn1.noarch  
    rubygem24-test-unit-3.2.3-2.13.amzn1.noarch  
  
src:  
    ruby24-2.4.10-2.13.amzn1.src  
  
x86_64:  
    ruby24-devel-2.4.10-2.13.amzn1.x86_64  
    rubygem24-json-2.0.4-2.13.amzn1.x86_64  
    rubygem24-io-console-0.4.6-2.13.amzn1.x86_64  
    rubygem24-xmlrpc-0.2.1-2.13.amzn1.x86_64  
    rubygem24-bigdecimal-1.3.2-2.13.amzn1.x86_64  
    ruby24-debuginfo-2.4.10-2.13.amzn1.x86_64  
    rubygem24-net-telnet-0.1.1-2.13.amzn1.x86_64  
    rubygem24-psych-2.2.2-2.13.amzn1.x86_64  
    ruby24-libs-2.4.10-2.13.amzn1.x86_64  
    ruby24-2.4.10-2.13.amzn1.x86_64  

Additional References

Red Hat: CVE-2020-25613

Mitre: CVE-2020-25613

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

5 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.003 Low

EPSS

Percentile

69.0%