Vulnerabilities > CVE-2017-9430 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Dnstracer Project Dnstracer 1.9
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
PARTIAL Integrity impact
PARTIAL Availability impact
PARTIAL Summary
Stack-based buffer overflow in dnstracer through 1.9 allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a command line with a long name argument that is mishandled in a strcpy call for argv[0]. An example threat model is a web application that launches dnstracer with an untrusted name string.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 1 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Overflow Buffers Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
- Client-side Injection-induced Buffer Overflow This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
- Filter Failure through Buffer Overflow In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
- MIME Conversion An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
Exploit-Db
description DNSTracer 1.9 - Buffer Overflow. CVE-2017-9430. Local exploit for Linux platform file exploits/linux/local/42424.py id EDB-ID:42424 last seen 2017-08-03 modified 2017-08-03 platform linux port published 2017-08-03 reporter Exploit-DB source https://www.exploit-db.com/download/42424/ title DNSTracer 1.9 - Buffer Overflow type local description DNSTracer 1.8.1 - Buffer Overflow. CVE-2017-9430. Dos exploit for Linux platform file exploits/linux/dos/42115.txt id EDB-ID:42115 last seen 2017-06-05 modified 2017-06-05 platform linux port published 2017-06-05 reporter Exploit-DB source https://www.exploit-db.com/download/42115/ title DNSTracer 1.8.1 - Buffer Overflow type dos
Packetstorm
data source https://packetstormsecurity.com/files/download/143654/dnstracer19-overflow.txt id PACKETSTORM:143654 last seen 2017-08-04 published 2017-08-04 reporter j0lama source https://packetstormsecurity.com/files/143654/DNSTracer-1.9-Buffer-Overflow.html title DNSTracer 1.9 Buffer Overflow data source https://packetstormsecurity.com/files/download/142799/dnstracer181-overflow.txt id PACKETSTORM:142799 last seen 2017-06-05 published 2017-06-05 reporter Hosein Askari source https://packetstormsecurity.com/files/142799/DNSTracer-1.8.1-Buffer-Overflow.html title DNSTracer 1.8.1 Buffer Overflow