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Vulnerability Details : CVE-2013-7040

Python 2.7 before 3.4 only uses the last eight bits of the prefix to randomize hash values, which causes it to compute hash values without restricting the ability to trigger hash collisions predictably and makes it easier for context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-1150.
Publish Date : 2014-05-19 Last Update Date : 2016-11-28
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- CVSS Scores & Vulnerability Types

CVSS Score
4.3
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 310

- Products Affected By CVE-2013-7040

# Product Type Vendor Product Version Update Edition Language
1 OS Apple Mac Os X 10.10.4 Version Details Vulnerabilities
2 Application Python Python 2.7 Version Details Vulnerabilities
3 Application Python Python 2.7.1 Version Details Vulnerabilities
4 Application Python Python 2.7.1 RC1 Version Details Vulnerabilities
5 Application Python Python 2.7.2 RC1 Version Details Vulnerabilities
6 Application Python Python 2.7.3 Version Details Vulnerabilities
7 Application Python Python 2.7.4 Version Details Vulnerabilities
8 Application Python Python 2.7.5 Version Details Vulnerabilities
9 Application Python Python 2.7.6 Version Details Vulnerabilities
10 Application Python Python 2.7.7 Version Details Vulnerabilities
11 Application Python Python 2.7.1150 Version Details Vulnerabilities
12 Application Python Python 2.7.2150 Version Details Vulnerabilities
13 Application Python Python 3.0 Version Details Vulnerabilities
14 Application Python Python 3.0.1 Version Details Vulnerabilities
15 Application Python Python 3.1 Version Details Vulnerabilities
16 Application Python Python 3.1.1 Version Details Vulnerabilities
17 Application Python Python 3.1.2 Version Details Vulnerabilities
18 Application Python Python 3.1.3 Version Details Vulnerabilities
19 Application Python Python 3.1.4 Version Details Vulnerabilities
20 Application Python Python 3.1.5 Version Details Vulnerabilities
21 Application Python Python 3.2 Alpha Version Details Vulnerabilities
22 Application Python Python 3.2 Version Details Vulnerabilities
23 Application Python Python 3.2.0 Version Details Vulnerabilities
24 Application Python Python 3.2.1 Version Details Vulnerabilities
25 Application Python Python 3.2.2 Version Details Vulnerabilities
26 Application Python Python 3.2.3 Version Details Vulnerabilities
27 Application Python Python 3.2.4 Version Details Vulnerabilities
28 Application Python Python 3.2.5 Version Details Vulnerabilities
29 Application Python Python 3.2.2150 Version Details Vulnerabilities
30 Application Python Python 3.3 Version Details Vulnerabilities
31 Application Python Python 3.3 Beta2 Version Details Vulnerabilities
32 Application Python Python 3.3.0 Version Details Vulnerabilities
33 Application Python Python 3.3.1 RC1 Version Details Vulnerabilities
34 Application Python Python 3.3.1 Version Details Vulnerabilities
35 Application Python Python 3.3.2 Version Details Vulnerabilities
36 Application Python Python 3.3.3 Version Details Vulnerabilities
37 Application Python Python 3.3.3 RC1 Version Details Vulnerabilities
38 Application Python Python 3.3.3 RC2 Version Details Vulnerabilities
39 Application Python Python 3.3.4 RC1 Version Details Vulnerabilities
40 Application Python Python 3.3.4 Version Details Vulnerabilities
41 Application Python Python 3.3.5 - Version Details Vulnerabilities
42 Application Python Python 3.3.5 RC1 Version Details Vulnerabilities
43 Application Python Python 3.3.5 RC2 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Apple Mac Os X 1
Python Python 42

- References For CVE-2013-7040

http://www.openwall.com/lists/oss-security/2013/12/09/3
MLIST [oss-security] 20131209 CPython hash secret can be recoved remotely
http://www.securityfocus.com/bid/64194
BID 64194 Python CVE-2013-7040 Information Disclosure Weakness Release Date:2015-08-18
https://support.apple.com/kb/HT205031 CONFIRM
http://bugs.python.org/issue14621 CONFIRM
http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html
APPLE APPLE-SA-2015-08-13-2
http://www.openwall.com/lists/oss-security/2013/12/09/13
MLIST [oss-security] 20131209 Re: CPython hash secret can be recoved remotely

- Metasploit Modules Related To CVE-2013-7040

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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