CVE-2007-2930

ISC BIND <8.4.7-P1 - Info Disclosure

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2007-2930. PoCs published by Amit Klein.

AI-analyzed exploit summary This exploit leverages a weakness in BIND 8's random-number generator to predict transaction IDs (TRXID), enabling cache poisoning attacks. It calculates the next TRXID using mathematical operations on provided TRXID values.

Description

The (1) NSID_SHUFFLE_ONLY and (2) NSID_USE_POOL PRNG algorithms in ISC BIND 8 before 8.4.7-P1 generate predictable DNS query identifiers when sending outgoing queries such as NOTIFY messages when answering questions as a resolver, which allows remote attackers to poison DNS caches via unknown vectors. NOTE: this issue is different from CVE-2007-2926.

Exploits (2)

exploitdb WORKING POC VERIFIED
by Amit Klein · perlremotelinux
https://www.exploit-db.com/exploits/30536

This exploit leverages a weakness in BIND 8's random-number generator to predict transaction IDs (TRXID), enabling cache poisoning attacks. It calculates the next TRXID using mathematical operations on provided TRXID values.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Moderate
Reliability
Theoretical
Target: BIND 8.2.0 to 8.4.7
No auth needed
Prerequisites: Three consecutive TRXID values from the target BIND server
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by Amit Klein · perlremotelinux
https://www.exploit-db.com/exploits/30535

This exploit targets a remote cache-poisoning vulnerability in BIND 8 due to a weak random-number generator. It attempts to predict transaction IDs by leveraging a precomputed table from BIND 8.4.7 source code to manipulate cache data.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Moderate
Reliability
Theoretical
Target: BIND 8.2.0 through 8.4.7
No auth needed
Prerequisites: Network access to the target BIND server · Ability to send crafted DNS queries
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (28)

Core 28
Core References
Vendor Advisory vendor-advisory x_refsource_sunalert
http://sunsolve.sun.com/search/document.do?assetkey=1-66-200859-1
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2007/3936
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/27433
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/481424/100/0/threaded
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2007/3192
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2007/2991
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/26629
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id?1018615
Various Sources x_refsource_misc
http://www.trusteer.com/docs/bind8dns.html
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/27459
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/25459
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2007/3668
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/27696
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/477870/100/100/threaded
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/27465
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2007/3639
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/26858
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2154
Patch, US Government Resource third-party-advisory x_refsource_cert-vn
http://www.kb.cert.org/vuls/id/927905
Vendor Advisory vendor-advisory x_refsource_sunalert
http://sunsolve.sun.com/search/document.do?assetkey=1-26-103063-1
Patch third-party-advisory government-resource x_refsource_ciac
http://www.ciac.org/ciac/bulletins/r-333.shtml
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/481659/100/0/threaded

Scores

EPSS 0.0759
EPSS Percentile 93.8%

Details

Status published
Products (1)
isc/bind < 8.4.7
Published Sep 12, 2007
Tracked Since Feb 18, 2026