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CVE
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CVE-2008-1637Date: (C)2008-04-02   (M)2018-02-19


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.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : CVSS Score : 6.8
Exploit Score: Exploit Score: 8.6
Impact Score: Impact Score: 6.4
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: Access Vector: NETWORK
Attack Complexity: Access Complexity: MEDIUM
Privileges Required: Authentication: NONE
User Interaction: Confidentiality: PARTIAL
Scope: Integrity: PARTIAL
Confidentiality: Availability: PARTIAL
Integrity:  
Availability:  
  
Reference:
http://www.securityfocus.com/archive/1/archive/1/490330/100/0/threaded
BID-28517
SECUNIA-29584
SECUNIA-29737
SECUNIA-29764
SECUNIA-29830
SECUNIA-30581
ADV-2008-1046
DSA-1544
FEDORA-2008-3010
FEDORA-2008-3036
GLSA-200804-22
SUSE-SR:2008:012
http://doc.powerdns.com/changelog.html
http://doc.powerdns.com/powerdns-advisory-2008-01.html
http://www.trusteer.com/docs/PowerDNS_recursor_DNS_Cache_Poisoning.pdf
http://www.trusteer.com/docs/powerdnsrecursor.html
powerdns-dnscache-weak-security(41534)

CWE    1
CWE-189
OVAL    1
oval:org.mitre.oval:def:8177

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