CVE-2008-1637: Medium severity powerdns vulnerability
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.
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is the severity of CVE-2008-1637?
CVE-2008-1637 has a medium severity rating due to potential DNS cache poisoning vulnerabilities.
How do I fix CVE-2008-1637?
To mitigate CVE-2008-1637, upgrade PowerDNS Recursor to version 3.1.5 or later.
What is the impact of exploiting CVE-2008-1637?
Exploiting CVE-2008-1637 allows attackers to poison the DNS cache, leading to the redirection of users to malicious sites.
Which versions of PowerDNS are affected by CVE-2008-1637?
CVE-2008-1637 affects PowerDNS Recursor versions prior to 3.1.5.
What causes the vulnerability in CVE-2008-1637?
CVE-2008-1637 is caused by insufficient randomness in TRXID values and UDP source port numbers utilized by PowerDNS.