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Vulnerability Details : CVE-2011-1784

The pidfile_write function in core/pidfile.c in keepalived 1.2.2 and earlier uses 0666 permissions for the (1) keepalived.pid, (2) checkers.pid, and (3) vrrp.pid files in /var/run/, which allows local users to kill arbitrary processes by writing a PID to one of these files.
Publish Date : 2011-05-20 Last Update Date : 2017-08-17
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- CVSS Scores & Vulnerability Types

CVSS Score
3.6
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 264

- Products Affected By CVE-2011-1784

# Product Type Vendor Product Version Update Edition Language
1 Application Keepalived Keepalived * * * * Version Details Vulnerabilities
2 Application Keepalived Keepalived 0.2.1 * * * Version Details Vulnerabilities
3 Application Keepalived Keepalived 0.2.3 * * * Version Details Vulnerabilities
4 Application Keepalived Keepalived 0.2.6 * * * Version Details Vulnerabilities
5 Application Keepalived Keepalived 0.2.7 * * * Version Details Vulnerabilities
6 Application Keepalived Keepalived 0.3.5 * * * Version Details Vulnerabilities
7 Application Keepalived Keepalived 0.3.6 * * * Version Details Vulnerabilities
8 Application Keepalived Keepalived 0.3.7 * * * Version Details Vulnerabilities
9 Application Keepalived Keepalived 0.3.8 * * * Version Details Vulnerabilities
10 Application Keepalived Keepalived 0.4.8 * * * Version Details Vulnerabilities
11 Application Keepalived Keepalived 0.4.9 * * * Version Details Vulnerabilities
12 Application Keepalived Keepalived 0.4.9a * * * Version Details Vulnerabilities
13 Application Keepalived Keepalived 0.5.3 * * * Version Details Vulnerabilities
14 Application Keepalived Keepalived 0.5.5 * * * Version Details Vulnerabilities
15 Application Keepalived Keepalived 0.5.6 * * * Version Details Vulnerabilities
16 Application Keepalived Keepalived 0.5.7 * * * Version Details Vulnerabilities
17 Application Keepalived Keepalived 0.5.8 * * * Version Details Vulnerabilities
18 Application Keepalived Keepalived 0.5.9 * * * Version Details Vulnerabilities
19 Application Keepalived Keepalived 0.6.1 * * * Version Details Vulnerabilities
20 Application Keepalived Keepalived 0.6.2 * * * Version Details Vulnerabilities
21 Application Keepalived Keepalived 0.6.3 * * * Version Details Vulnerabilities
22 Application Keepalived Keepalived 0.6.4 * * * Version Details Vulnerabilities
23 Application Keepalived Keepalived 0.6.5 * * * Version Details Vulnerabilities
24 Application Keepalived Keepalived 0.6.6 * * * Version Details Vulnerabilities
25 Application Keepalived Keepalived 0.6.7 * * * Version Details Vulnerabilities
26 Application Keepalived Keepalived 0.6.8 * * * Version Details Vulnerabilities
27 Application Keepalived Keepalived 0.6.9 * * * Version Details Vulnerabilities
28 Application Keepalived Keepalived 0.6.10 * * * Version Details Vulnerabilities
29 Application Keepalived Keepalived 0.7.1 * * * Version Details Vulnerabilities
30 Application Keepalived Keepalived 0.7.6 * * * Version Details Vulnerabilities
31 Application Keepalived Keepalived 1.0.0 * * * Version Details Vulnerabilities
32 Application Keepalived Keepalived 1.0.1 * * * Version Details Vulnerabilities
33 Application Keepalived Keepalived 1.0.2 * * * Version Details Vulnerabilities
34 Application Keepalived Keepalived 1.0.3 * * * Version Details Vulnerabilities
35 Application Keepalived Keepalived 1.1.0 * * * Version Details Vulnerabilities
36 Application Keepalived Keepalived 1.1.1 * * * Version Details Vulnerabilities
37 Application Keepalived Keepalived 1.1.2 * * * Version Details Vulnerabilities
38 Application Keepalived Keepalived 1.1.3 * * * Version Details Vulnerabilities
39 Application Keepalived Keepalived 1.1.4 * * * Version Details Vulnerabilities
40 Application Keepalived Keepalived 1.1.5 * * * Version Details Vulnerabilities
41 Application Keepalived Keepalived 1.1.6 * * * Version Details Vulnerabilities
42 Application Keepalived Keepalived 1.1.7 * * * Version Details Vulnerabilities
43 Application Keepalived Keepalived 1.1.8 * * * Version Details Vulnerabilities
44 Application Keepalived Keepalived 1.1.9 * * * Version Details Vulnerabilities
45 Application Keepalived Keepalived 1.1.10 * * * Version Details Vulnerabilities
46 Application Keepalived Keepalived 1.1.11 * * * Version Details Vulnerabilities
47 Application Keepalived Keepalived 1.1.12 * * * Version Details Vulnerabilities
48 Application Keepalived Keepalived 1.1.13 * * * Version Details Vulnerabilities
49 Application Keepalived Keepalived 1.1.14 * * * Version Details Vulnerabilities
50 Application Keepalived Keepalived 1.1.15 * * * Version Details Vulnerabilities
51 Application Keepalived Keepalived 1.1.16 * * * Version Details Vulnerabilities
52 Application Keepalived Keepalived 1.1.17 * * * Version Details Vulnerabilities
53 Application Keepalived Keepalived 1.1.18 * * * Version Details Vulnerabilities
54 Application Keepalived Keepalived 1.1.19 * * * Version Details Vulnerabilities
55 Application Keepalived Keepalived 1.1.20 * * * Version Details Vulnerabilities
56 Application Keepalived Keepalived 1.2.0 * * * Version Details Vulnerabilities
57 Application Keepalived Keepalived 1.2.1 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Keepalived Keepalived 57

- References For CVE-2011-1784

http://lists.debian.org/debian-security/2011/05/msg00013.html
MLIST [debian-security] 20110510 Re: World writable pid and lock files.
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=626281 CONFIRM
http://secunia.com/advisories/44460
SECUNIA 44460
https://bugzilla.redhat.com/show_bug.cgi?id=704039 CONFIRM
http://lists.debian.org/debian-security/2011/05/msg00018.html
MLIST [debian-security] 20110511 Re: World writable pid and lock files.
http://www.securityfocus.com/bid/47859
BID 47859 keepalived Insecure PID Files Insecure File Permissions Vulnerability Release Date:2012-09-05
http://openwall.com/lists/oss-security/2011/05/16/7
MLIST [oss-security] 20110516 Re: CVE request: keepalived pid file permissions issue
http://lists.debian.org/debian-security/2011/05/msg00012.html
MLIST [debian-security] 20110510 World writable pid and lock files.
http://openwall.com/lists/oss-security/2011/05/10/5
MLIST [oss-security] 20110510 CVE request: keepalived pid file permissions issue
http://www.osvdb.org/72380
OSVDB 72380
https://exchange.xforce.ibmcloud.com/vulnerabilities/67477
XF keepalived-pid-dos(67477)

- Metasploit Modules Related To CVE-2011-1784

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


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