Vulnerability in Powerdns Recursor
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.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 6.8 (Medium). Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.040 (90.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.040 · newest: 0.040 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secunia.com/advisories/29764 (third-party-advisory)
- secunia.com/advisories/29737 (third-party-advisory)
- www.debian.org/security/2008/dsa-1544 (vendor-advisory)
- www.redhat.com/archives/fedora-package-announce/2008-April/msg00198.html (vendor-advisory)
- www.securityfocus.com/bid/28517 (vdb-entry)
- doc.powerdns.com/changelog.html
- www.trusteer.com/docs/powerdnsrecursor.html (Exploit)
- secunia.com/advisories/29584 (Exploit, Vendor Advisory, third-party-advisory)
- lists.opensuse.org/opensuse-security-announce/2008-06/msg00001.html (vendor-advisory)
- www.vupen.com/english/advisories/2008/1046/references (vdb-entry)
Frequently asked questions
- What is CVE-2008-1637?
- CVE-2008-1637 is a vulnerability in Powerdns Recursor, classified under CWE-189. Published 2008-04-02.
- Is CVE-2008-1637 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.