Multiple vulnerabilities in ISC BIND
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2006-0987 CVE-1999-0024 |
| CWE-ID | CWE-400 CWE-350 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
ISC BIND Server applications / DNS servers |
| Vendor |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Resource exhaustion
EUVDB-ID: #VU92164
Risk: Medium
CVSSv3.1: 4.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:F/RL:O/RC:C]
CVE-ID: CVE-2006-0987
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to the default configuration of ISC BIND when configured as a caching name server, allows recursive queries and provides additional delegation information to arbitrary IP addresses. A remote attacker can trigger resource exhaustion and cause a denial of service (traffic amplification) via DNS queries with spoofed source IP addresses.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability..
Vulnerable software versionsISC BIND: before 9.4.1-P1
CPE2.3http://dns.measurement-factory.com/surveys/sum1.html
http://kb.isc.org/article/AA-00269
http://www.securityfocus.com/archive/1/426368/100/0/threaded
http://www.us-cert.gov/reading_room/DNS-recursion121605.pdf
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.
2) Reliance on Reverse DNS Resolution for a Security-Critical Action
EUVDB-ID: #VU92162
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-1999-0024
CWE-ID:
CWE-350 - Reliance on Reverse DNS Resolution for a Security-Critical Action
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to predictable query IDs. A remote unauthenticated attacker can trigger the vulnerability to modify data on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsISC BIND: before 8.1.1
CPE2.3http://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0024
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
