CVE-2009-1692 : Detail

CVE-2009-1692

4%V4
Network
2009-06-19
14h00 +00:00
2018-10-10
16h57 +00:00
CVE.org
NVD
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CVE Descriptions

WebKit before r41741, as used in Apple iPhone OS 1.0 through 2.2.1, iPhone OS for iPod touch 1.1 through 2.2.1, Safari, and other software, allows remote attackers to cause a denial of service (memory consumption or device reset) via a web page containing an HTMLSelectElement object with a large length attribute, related to the length property of a Select object.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-399 Category : Resource Management Errors
Weaknesses in this category are related to improper management of system resources.

Metrics

Metrics Score Severity CVSS Vector Source
V2 7.1 AV:N/AC:M/Au:N/C:N/I:N/A:C nvd@nist.gov

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 9160

Publication date : 2009-07-14 22h00 +00:00
Author : Thierry Zoller
EDB Verified : Yes

________________________________________________________________________ One bug to rule them all IE5,IE6,IE7,IE8,Netscape,Firefox,Safari,Opera,Konqueror, Seamonkey,Wii,PS3,iPhone,iPod,Nokia,Siemens.... and more. Don't wet your pants - it's DoS only ________________________________________________________________________ Release mode: Tried hard to coordinate - gave up Reference : [GSEC-TZO-26-2009] - One bug to rule them all WWW : http://www.g-sec.lu/one-bug-to-rule-them-all.html Vendors : http://www.firefox.com http://www.apple.com http://www.opera.com http://www.sony.com http://www.nintendo.com http://www.nokia.com http://www.siemens.com others.. Status : Varies CVE : CVE-2009-1692 (created by apple same root cause) Credit : Except Apple - nobody Affected products : ~~~~~~~~~~~~~~~~~ - Internet Explorer 5, 6, 7, 8 (all versions) - Chrome (limited) - Opera - Seamonkey - Midbrowser - Netscape 6 & 8 (9 years ago) - Konqueror (all versions) - Apple iPhone + iPod - Apple Safari - Thunderbird - Nokia Phones : Nokia N95 (Symbian OS v.9.2),Nokia N82, Nokia N810 Internet Tablet - Aigo P8860 (Browser hangs and cannot be restarted) - Siemens phones - Google T-Mobile G1 TC4-RC30 - Ubuntu (Operating system sometimes reboots, memory management failure) - possibly more devices and products that support Javascript, try it yourselves. POC here : http://www.crashthisthing.com/select.html Patch availability : ~~~~~~~~~~~~~~~~~~ - Mozilla : Fixed in Firefox 3.0.5 and 2.0.0.19 https://bugzilla.mozilla.org/show_bug.cgi?id=460713 - Apple iPhone&iPod : patched - IE : No patch for IE5, IE6, IE7, IE8 until IE9 - Webkit : Patched in r41741 - https://bugs.webkit.org/show_bug.cgi?id=23319 - Chrome : Patched, unknown which version) - Opera : Patched after version 9.64 - Thunderbird (unknown) - Konqueror : unknown (did not respond) - Nokia : unknown, opened a case but never came back - Aigo P8860 : unknown - Siemens : unknown - Others ? Find out by visiting the POC at http://crashthisthing.com/select.html I. Background ~~~~~~~~~~~ Quoting Wikipedia "ECMAScript is a scripting language, standardized by Ecma International in the ECMA-262 specification and ISO/IEC 16262. The language is widely used on the web, especially in the form of its three best-known dialects, JavaScript, ActionScript, and JScript." II. Description ~~~~~~~~~~~~~ Calling the select() method with a large integer, results in continuos allocation of x+n bytes of memory exhausting memory after a while. The impact varies from null pointer dereference (no more memory,hence crashing the browser) to the reboot of the complete Operation System (Konqueror&Ubuntu) There had never been a limit specified as to how many html elements the select call should handle, after the report of this Bug, vendors apparently agreed to a limit of 10.000 elements : "Talked to some Apple and Opera guys at the WHATWG social, and we decided this was a good number" III. Impact ~~~~~~~~~ The Impact varies from Browser to Browser and from OS to OS. Here is a small excerpt: - Konqueror (Ubuntu)- allocates 2GB of memory then either crashes the Browser or (most often) the OS reboots. Ubuntu's memory management system appears to be configured as to NOT stop the process that consumes too much memory, but a random process. This sometimes leads to processes that are vital for the OS to be killed, hence the reboot. I am not kidding. Thanks to 'FX' for Memory management hint. - Chrome : allocates 2GB of memory then crashes tab with a null pointer - Firefox : allocates 2GB of memory then the Browser crashes - IE5,6,7,8 : allocates 2GB of memory then the Browser crashes - Opera : Allocated and commits as much memory as available, will not crash but other applications will become unstable - Nintento WII (Opera) : Console hangs, needs hard reset Video: http://vimeo.com/2937101 (Thanks to David Raison) - Sony PS3 - Console hangs, needs hard reset Video: http://vimeo.com/2937101 (Thanks to Chris Gates) - iPhone - iPhone hangs and needs hard reset Video: http://vimeo.com/2873339 (Thanks to g0tcha) - Aigo P8860 (Browser hangs and cannot be restarted) IV. Proof of concept ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ <script> function poc(o) { e = document.createElement("select"); e.length=2147483647; } function go() { poc(0); } </script> URL: http://www.crashthisthing.com/select.html Some have not understood what this code does, it does NOT loop as some vendors claimed, it just calls select.lenght() ONCE with a huge integer. One might wonder if over the 9 last years that this bug existed, nobody ever entered a large number in a select.lenght() call. IV. Disclosure timeline ~~~~~~~~~~~~~~~~~~~~~~~ Nothing particular to note, except the usual discussion about availability being a security issue. V. Thanks ~~~~~~~~~~~~~~~~~~~~~~~ Chris Gates, David Raison, Fahem Adam, a team of engineers that recognise themselves and oCert for not helping coordinate this bug. # milw0rm.com [2009-07-15]

Products Mentioned

Configuraton 0

Apple>>Iphone_os >> Version 1.0.0

Apple>>Iphone_os >> Version 1.0.1

Apple>>Iphone_os >> Version 1.0.2

Apple>>Iphone_os >> Version 1.1.0

Apple>>Iphone_os >> Version 1.1.1

Apple>>Iphone_os >> Version 1.1.2

Apple>>Iphone_os >> Version 1.1.3

Apple>>Iphone_os >> Version 1.1.4

Apple>>Iphone_os >> Version 1.1.5

Apple>>Iphone_os >> Version 2.0

Apple>>Iphone_os >> Version 2.0.0

Apple>>Iphone_os >> Version 2.0.1

Apple>>Iphone_os >> Version 2.0.2

Apple>>Iphone_os >> Version 2.1

Apple>>Iphone_os >> Version 2.1.1

Apple>>Iphone_os >> Version 2.2

Apple>>Iphone_os >> Version 2.2.1

Apple>>Iphone_os >> Version *

Configuraton 0

Apple>>Iphone_os >> Version 1.1.0

Apple>>Iphone_os >> Version 1.1.1

Apple>>Iphone_os >> Version 1.1.2

Apple>>Iphone_os >> Version 1.1.3

Apple>>Iphone_os >> Version 1.1.4

Apple>>Iphone_os >> Version 1.1.5

Apple>>Iphone_os >> Version 2.0

Apple>>Iphone_os >> Version 2.0.0

Apple>>Iphone_os >> Version 2.0.1

Apple>>Iphone_os >> Version 2.0.2

Apple>>Iphone_os >> Version 2.1

Apple>>Iphone_os >> Version 2.1.1

Apple>>Iphone_os >> Version 2.2

Apple>>Iphone_os >> Version 2.2.1

Apple>>Ipod_touch >> Version *

Configuraton 0

Apple>>Safari >> Version *

References

http://www.securityfocus.com/bid/35446
Tags : vdb-entry, x_refsource_BID
https://www.exploit-db.com/exploits/9160
Tags : exploit, x_refsource_EXPLOIT-DB
http://support.apple.com/kb/HT3639
Tags : x_refsource_CONFIRM
http://secunia.com/advisories/43068
Tags : third-party-advisory, x_refsource_SECUNIA
http://www.vupen.com/english/advisories/2009/1621
Tags : vdb-entry, x_refsource_VUPEN
http://www.vupen.com/english/advisories/2011/0212
Tags : vdb-entry, x_refsource_VUPEN
http://www.securityfocus.com/bid/35414
Tags : vdb-entry, x_refsource_BID
http://secunia.com/advisories/37746
Tags : third-party-advisory, x_refsource_SECUNIA
http://secunia.com/advisories/36977
Tags : third-party-advisory, x_refsource_SECUNIA
http://www.debian.org/security/2009/dsa-1950
Tags : vendor-advisory, x_refsource_DEBIAN
http://osvdb.org/55242
Tags : vdb-entry, x_refsource_OSVDB
The information presented on CVE Find originates from several carefully selected reference sources. CVE data is provided by MITRE Corporation and the National Vulnerability Database (NVD). The Known Exploited Vulnerabilities (KEV) catalog is sourced from the Cybersecurity and Infrastructure Security Agency (CISA), while EPSS scores come from FIRST.org. Additionally, data regarding software weaknesses (CWE) and common attack patterns (CAPEC) is maintained by MITRE Corporation, and information on hardware and software configurations (CPE) is provided by the NVD.