Description
Format string vulnerabilities in the logging routines for dynamic DNS code (print.c) of ISC DHCP daemon (DHCPD) 3 to 3.0.1rc8, with the NSUPDATE option enabled, allow remote malicious DNS servers to execute arbitrary code via format strings in a DNS server response.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- ISC DHCPD 2.0/3.0.1 - NSUPDATE Remote Format String EDB-21440 · remote · May 8, 2002 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 4701 vdb-entry
- VU#854315 third-party-advisory
- SuSE-SA:2002:019 vendor-advisory
- CA-2002-12 third-party-advisory
- 20020508 [NGSEC-2002-2] ISC DHCPDv3, remote root compromise mailing-list
- CLA-2002:483 vendor-advisory
- MDKSA-2002:037 vendor-advisory
- 20020508 [VulnWatch] [NGSEC-2002-2] ISC DHCPDv3, remote root compromise mailing-list
- dhcpd-nsupdate-format-string(9039) vdb-entry