NVD - CVE-2017-0903

CVE-2017-0903 Detail

Modified

This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.

Current Description

RubyGems versions between 2.0.0 and 2.6.13 are vulnerable to a possible remote code execution vulnerability. YAML deserialization of gem specifications can bypass class white lists. Specially crafted serialized objects can possibly be used to escalate to remote code execution.

Source: MITRE
Description Last Modified: 10/11/2017
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 9.8 CRITICAL
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 3.9

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 10.0

Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
http://blog.rubygems.org/2017/10/09/2.6.14-released.html	Vendor Advisory
http://blog.rubygems.org/2017/10/09/unsafe-object-deserialization-vulnerability.html	Vendor Advisory
http://www.securityfocus.com/bid/101275	Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:3485
https://access.redhat.com/errata/RHSA-2018:0378
https://access.redhat.com/errata/RHSA-2018:0583
https://access.redhat.com/errata/RHSA-2018:0585
https://github.com/rubygems/rubygems/commit/510b1638ac9bba3ceb7a5d73135dafff9e5bab49	Patch Third Party Advisory
https://hackerone.com/reports/274990	Permissions Required
https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
https://usn.ubuntu.com/3553-1/
https://usn.ubuntu.com/3685-1/
https://www.debian.org/security/2017/dsa-4031

Technical Details

Vulnerability Type (View All)

Deserialization of Untrusted Data (CWE-502)

Vulnerable software and versions Switch to CPE 2.2

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

9 change records found - show changes

Initial Analysis - 11/3/2017 1:35:35 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		Record truncated, showing 500 of 3957 characters. View Entire Change Record OR cpe:2.3:a:rubygems:rubygems:2.0.0::::::: cpe:2.3:a:rubygems:rubygems:2.0.0:preview2::::::* cpe:2.3:a:rubygems:rubygems:2.0.0:preview2.1::::::* cpe:2.3:a:rubygems:rubygems:2.0.0:preview2.2::::::* cpe:2.3:a:rubygems:rubygems:2.0.0:rc1::::::* cpe:2.3:a:rubygems:rubygems:2.0.0:rc2::::::* cpe:2.3:a:rubygems:rubygems:2.0.1::::::: cpe:2.3:a:rubygems:rubygems:2.0.2::::::: *cpe:2.3:a:rubygems:rubygems:2.
Added	CVSS V2		(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Added	CVSS V3		AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Added	CWE		CWE-502
Changed	Reference Type	http://blog.rubygems.org/2017/10/09/2.6.14-released.html No Types Assigned	http://blog.rubygems.org/2017/10/09/2.6.14-released.html Vendor Advisory
Changed	Reference Type	http://blog.rubygems.org/2017/10/09/unsafe-object-deserialization-vulnerability.html No Types Assigned	http://blog.rubygems.org/2017/10/09/unsafe-object-deserialization-vulnerability.html Vendor Advisory
Changed	Reference Type	http://www.securityfocus.com/bid/101275 No Types Assigned	http://www.securityfocus.com/bid/101275 Third Party Advisory, VDB Entry
Changed	Reference Type	https://github.com/rubygems/rubygems/commit/510b1638ac9bba3ceb7a5d73135dafff9e5bab49 No Types Assigned	https://github.com/rubygems/rubygems/commit/510b1638ac9bba3ceb7a5d73135dafff9e5bab49 Patch, Third Party Advisory
Changed	Reference Type	https://hackerone.com/reports/274990 No Types Assigned	https://hackerone.com/reports/274990 Permissions Required

Quick Info

CVE Dictionary Entry:
CVE-2017-0903
NVD Published Date:
10/11/2017
NVD Last Modified:
07/14/2018

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-0903 Detail

Current Description

Analysis Description

Impact

References to Advisories, Solutions, and Tools

Technical Details

Vulnerable software and versions Switch to CPE 2.2

Change History

CVE Modified by MITRE - 7/14/2018 9:29:01 PM

CVE Modified by MITRE - 6/15/2018 9:29:01 PM

CVE Modified by MITRE - 3/27/2018 9:29:06 PM

CVE Modified by MITRE - 3/15/2018 9:29:02 PM

CVE Modified by MITRE - 3/1/2018 9:29:01 PM

CVE Modified by MITRE - 12/19/2017 9:29:02 PM

CVE Modified by MITRE - 11/12/2017 9:29:00 PM

Initial Analysis - 11/3/2017 1:35:35 PM

CVE Modified by MITRE - 10/17/2017 9:29:00 PM

Quick Info