Vulnerabilities
Misconfiguration
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CVE Vulnerabilities

CVE-2018-1000074

Deserialization of Untrusted Data

Published: Mar 13, 2018 | Modified: Nov 21, 2024
CVSS 3.x
7.8
HIGH
Source:
NVD
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
7.8 MODERATE
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2018-1000074
CWEhttps://cwe.mitre.org/data/definitions/502.html

RubyGems version Ruby 2.2 series: 2.2.9 and earlier, Ruby 2.3 series: 2.3.6 and earlier, Ruby 2.4 series: 2.4.3 and earlier, Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contains a Deserialization of Untrusted Data vulnerability in owner command that can result in code execution. This attack appear to be exploitable via victim must run the gem owner command on a gem with a specially crafted YAML file. This vulnerability appears to have been fixed in 2.7.6.

Weakness

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Affected Software

NameVendorStart VersionEnd Version
RubygemsRubygems*2.2.9 (including)
Red Hat Enterprise Linux 7RedHatruby-0:2.0.0.648-36.el7*
Red Hat Enterprise Linux 7.4 Advanced Update SupportRedHatruby-0:2.0.0.648-35.el7_4*
Red Hat Enterprise Linux 7.4 Telco Extended Update SupportRedHatruby-0:2.0.0.648-35.el7_4*
Red Hat Enterprise Linux 7.4 Update Services for SAP SolutionsRedHatruby-0:2.0.0.648-35.el7_4*
Red Hat Enterprise Linux 7.5 Extended Update SupportRedHatruby-0:2.0.0.648-35.el7_5*
Red Hat Enterprise Linux 7.6 Extended Update SupportRedHatruby-0:2.0.0.648-36.el7_6*
Red Hat Software Collections for Red Hat Enterprise Linux 6RedHatrh-ruby23-ruby-0:2.3.8-69.el6*
Red Hat Software Collections for Red Hat Enterprise Linux 6RedHatrh-ruby24-ruby-0:2.4.5-91.el6*
Red Hat Software Collections for Red Hat Enterprise Linux 7RedHatrh-ruby23-ruby-0:2.3.8-69.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7RedHatrh-ruby24-ruby-0:2.4.5-91.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7RedHatrh-ruby25-ruby-0:2.5.3-6.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSRedHatrh-ruby23-ruby-0:2.3.8-69.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSRedHatrh-ruby24-ruby-0:2.4.5-91.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSRedHatrh-ruby25-ruby-0:2.5.3-6.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUSRedHatrh-ruby23-ruby-0:2.3.8-69.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUSRedHatrh-ruby24-ruby-0:2.4.5-91.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUSRedHatrh-ruby25-ruby-0:2.5.3-6.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSRedHatrh-ruby23-ruby-0:2.3.8-69.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSRedHatrh-ruby24-ruby-0:2.4.5-91.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSRedHatrh-ruby25-ruby-0:2.5.3-6.el7*
JrubyUbuntuartful*
JrubyUbuntubionic*
JrubyUbuntucosmic*
JrubyUbuntuesm-infra-legacy/trusty*
JrubyUbuntutrusty*
JrubyUbuntutrusty/esm*
JrubyUbuntuxenial*
Ruby1.9.1Ubuntutrusty*
Ruby2.0Ubuntutrusty*
Ruby2.3Ubuntuartful*
Ruby2.3Ubuntuesm-infra/xenial*
Ruby2.3Ubuntuxenial*
Ruby2.5Ubuntubionic*
Ruby2.5Ubuntucosmic*
Ruby2.5Ubuntudisco*
Ruby2.5Ubuntueoan*
Ruby2.5Ubuntuesm-infra/bionic*

Potential Mitigations

  • Make fields transient to protect them from deserialization.
  • An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.

References

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