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Vulnerability Details : CVE-2008-1637

PowerDNS Recursor before 3.1.5 uses insufficient randomness to calculate (1) TRXID values and (2) UDP source port numbers, which makes it easier for remote attackers to poison a DNS cache, related to (a) algorithmic deficiencies in rand and random functions in external libraries, (b) use of a 32-bit seed value, and (c) choice of the time of day as the sole seeding information.
Publish Date : 2008-04-02 Last Update Date : 2008-09-10
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- CVSS Scores & Vulnerability Types

CVSS Score
6.8
Confidentiality Impact Partial (There is considerable informational disclosure.)
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 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)
CWE ID 189

- Related OVAL Definitions

Title Definition Id Class Family
DSA-1544 pdns-recursor -- design flaw oval:org.mitre.oval:def:8177 unix
DSA-1544-1 pdns-recursor - cache poisoning vulnerability oval:org.mitre.oval:def:20332 unix
DSA-1544-2 pdns-recursor - predictable randomness oval:org.mitre.oval:def:19578 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2008-1637

# Product Type Vendor Product Version Update Edition Language
1 Application Powerdns Recursor 3.1.4 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Powerdns Recursor 1

- References For CVE-2008-1637

http://secunia.com/advisories/29764
SECUNIA 29764
http://secunia.com/advisories/29737
SECUNIA 29737
http://secunia.com/advisories/29830
SECUNIA 29830
http://secunia.com/advisories/30581
SECUNIA 30581
http://security.gentoo.org/glsa/glsa-200804-22.xml
GENTOO GLSA-200804-22
http://www.debian.org/security/2008/dsa-1544
DEBIAN DSA-1544
http://www.frsirt.com/english/advisories/2008/1046/references
VUPEN ADV-2008-1046
http://www.securityfocus.com/archive/1/archive/1/490330/100/0/threaded
BUGTRAQ 20080331 Paper by Amit Klein (Trusteer): "PowerDNS Recursor DNS Cache Poisoning [pharming]"
http://www.securityfocus.com/bid/28517
BID 28517 PowerDNS Remote Cache Poisoning Vulnerability Release Date:2008-07-16
http://www.trusteer.com/docs/PowerDNS_recursor_DNS_Cache_Poisoning.pdf
http://www.trusteer.com/docs/powerdnsrecursor.html
http://xforce.iss.net/xforce/xfdb/41534
XF powerdns-dnscache-weak-security(41534)
https://www.redhat.com/archives/fedora-package-announce/2008-April/msg00198.html
FEDORA FEDORA-2008-3010
https://www.redhat.com/archives/fedora-package-announce/2008-April/msg00224.html
FEDORA FEDORA-2008-3036
http://doc.powerdns.com/powerdns-advisory-2008-01.html CONFIRM
http://secunia.com/advisories/29584
SECUNIA 29584
http://lists.opensuse.org/opensuse-security-announce/2008-06/msg00001.html
SUSE SUSE-SR:2008:012
http://doc.powerdns.com/changelog.html CONFIRM

- Metasploit Modules Related To CVE-2008-1637

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


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