Vulnerabilities > CVE-2016-2385 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
COMPLETE Integrity impact
COMPLETE Availability impact
COMPLETE Summary
Heap-based buffer overflow in the encode_msg function in encode_msg.c in the SEAS module in Kamailio (formerly OpenSER and SER) before 4.3.5 allows remote attackers to cause a denial of service (memory corruption and process crash) or possibly execute arbitrary code via a large SIP packet.
Vulnerable Configurations
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 | Kamailio 4.3.4 - Heap-Based Buffer Overflow. CVE-2016-2385. Dos exploit for linux platform |
| file | exploits/linux/dos/39638.txt |
| id | EDB-ID:39638 |
| last seen | 2016-03-30 |
| modified | 2016-03-30 |
| platform | linux |
| port | |
| published | 2016-03-30 |
| reporter | Stelios Tsampas |
| source | https://www.exploit-db.com/download/39638/ |
| title | Kamailio 4.3.4 - Heap-Based Buffer Overflow |
| type | dos |
Nessus
NASL family Debian Local Security Checks NASL id DEBIAN_DSA-3535.NASL description Stelios Tsampas discovered a buffer overflow in the Kamailio SIP proxy which might result in the execution of arbitrary code. last seen 2020-06-01 modified 2020-06-02 plugin id 90278 published 2016-04-01 reporter This script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/90278 title Debian DSA-3535-1 : kamailio - security update NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_C428DE09ED6911E592CE002590263BF5.NASL description Stelios Tsampas reports : A (remotely exploitable) heap overflow vulnerability was found in Kamailio v4.3.4. last seen 2020-06-01 modified 2020-06-02 plugin id 90051 published 2016-03-21 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/90051 title FreeBSD : kamailio -- SEAS Module Heap overflow (c428de09-ed69-11e5-92ce-002590263bf5)
References
- http://packetstormsecurity.com/files/136477/Kamailio-4.3.4-Heap-Overflow.html
- http://www.debian.org/security/2016/dsa-3535
- http://www.debian.org/security/2016/dsa-3537
- http://www.kamailio.org/pub/kamailio/4.3.5/ChangeLog
- http://www.securityfocus.com/archive/1/537926/100/0/threaded
- https://census-labs.com/news/2016/03/30/kamailio-seas-heap-overflow/
- https://github.com/kamailio/kamailio/commit/f50c9c853e7809810099c970780c30b0765b0643
- https://www.exploit-db.com/exploits/39638/