Executive Summary

Informations
Name CVE-2011-2520 First vendor Publication 2011-07-21
Vendor Cve Last vendor Modification 2024-11-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 7.8
Base Score 7.8 Environmental Score 7.8
impact SubScore 5.9 Temporal Score 7.8
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:H/Au:S/C:C/I:C/A:C)
Cvss Base Score 6 Attack Range Local
Cvss Impact Score 10 Attack Complexity High
Cvss Expoit Score 1.5 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

fw_dbus.py in system-config-firewall 1.2.29 and earlier uses the pickle Python module unsafely during D-Bus communication between the GUI and the backend, which might allow local users to gain privileges via a crafted serialized object.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2520

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-502 Deserialization of Untrusted Data

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:21421
 
Oval ID: oval:org.mitre.oval:def:21421
Title: RHSA-2011:0953: system-config-firewall security update (Moderate)
Description: fw_dbus.py in system-config-firewall 1.2.29 and earlier uses the pickle Python module unsafely during D-Bus communication between the GUI and the backend, which might allow local users to gain privileges via a crafted serialized object.
Family: unix Class: patch
Reference(s): RHSA-2011:0953-01
CVE-2011-2520
 Version: 4
Platform(s): Red Hat Enterprise Linux 6
 Product(s): system-config-firewall
system-config-printer
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:23291
 
Oval ID: oval:org.mitre.oval:def:23291
Title: ELSA-2011:0953: system-config-firewall security update (Moderate)
Description: fw_dbus.py in system-config-firewall 1.2.29 and earlier uses the pickle Python module unsafely during D-Bus communication between the GUI and the backend, which might allow local users to gain privileges via a crafted serialized object.
Family: unix Class: patch
Reference(s): ELSA-2011:0953-01
CVE-2011-2520
 Version: 6
Platform(s): Oracle Linux 6
 Product(s): system-config-firewall
system-config-printer
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:28145
 
Oval ID: oval:org.mitre.oval:def:28145
Title: DEPRECATED: ELSA-2011-0953 -- system-config-firewall security update (moderate)
Description: system-config-firewall: [1.2.27-3.3] - fixed possible privilege escalation flaw via use of python pickle (CVE-2011-2520), replaced pickle by json (rhbz#717985) - stop D-BUS firewall mechanism on update system-config-printer: [1.1.16-17:.2] - Build pycups with -fno-strict-aliasing compiler option to avoid compiler warnings. [1.1.16-17:.1] - Adapted to system-config-firewall API change (bug #717985, CVE-2011-2520).
Family: unix Class: patch
Reference(s): ELSA-2011-0953
CVE-2011-2520
 Version: 4
Platform(s): Oracle Linux 6
 Product(s): system-config-firewall
system-config-printer
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 14
Os 1

OpenVAS Exploits

Date Description
2012-06-06 Name : RedHat Update for system-config-firewall RHSA-2011:0953-01
File : nvt/gb_RHSA-2011_0953-01_system-config-firewall.nasl
2011-08-12 Name : Fedora Update for system-config-firewall FEDORA-2011-9652
File : nvt/gb_fedora_2011_9652_system-config-firewall_fc15.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
73976 system-config-firewall fw_dbus.py pickle Python Module Serialized Object Loca...

Nessus® Vulnerability Scanner

Date Description
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2011-0953.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20110718_system_config_firewall_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2011-08-02 Name : The remote Fedora host is missing a security update.
File : fedora_2011-9652.nasl - Type : ACT_GATHER_INFO
2011-07-19 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2011-0953.nasl - Type : ACT_GATHER_INFO

Sources (Detail)

http://lists.fedoraproject.org/pipermail/package-announce/2011-August/063314....
http://secunia.com/advisories/45294
http://securitytracker.com/id?1025793
http://www.openwall.com/lists/oss-security/2011/07/18/6
http://www.redhat.com/support/errata/RHSA-2011-0953.html
http://www.securityfocus.com/bid/48715
https://bugzilla.redhat.com/show_bug.cgi?id=717985
https://exchange.xforce.ibmcloud.com/vulnerabilities/68734
Source Url

Alert History

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Date Informations
2024-11-28 23:04:37
  • Multiple Updates
2024-11-28 12:26:09
  • Multiple Updates
2024-01-21 09:27:48
  • Multiple Updates
2023-02-13 09:28:55
  • Multiple Updates
2023-02-02 21:28:47
  • Multiple Updates
2021-05-04 12:14:43
  • Multiple Updates
2021-04-22 01:16:02
  • Multiple Updates
2020-05-23 01:44:50
  • Multiple Updates
2020-05-23 00:28:57
  • Multiple Updates
2017-08-29 09:23:17
  • Multiple Updates
2016-04-26 20:51:53
  • Multiple Updates
2014-02-17 11:03:21
  • Multiple Updates
2013-05-10 23:03:16
  • Multiple Updates