Vulnerabilities > CVE-2015-10088 - Use of Externally-Controlled Format String vulnerability in Ayttm Project Ayttm

047910
CVSS 8.1 - HIGH
Attack vector
NETWORK
Attack complexity
HIGH
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
network
high complexity
ayttm-project
CWE-134

Summary

A vulnerability, which was classified as critical, was found in ayttm up to 0.5.0.89. This affects the function http_connect in the library libproxy/proxy.c. The manipulation leads to format string. It is possible to initiate the attack remotely. The complexity of an attack is rather high. The exploitability is told to be difficult. The patch is named 40e04680018614a7d2b68566b261b061a0597046. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-222267.

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Format String Injection
    An attacker includes formatting characters in a string input field on the target application. Most applications assume that users will provide static text and may respond unpredictably to the presence of formatting character. For example, in certain functions of the C programming languages such as printf, the formatting character %s will print the contents of a memory location expecting this location to identify a string and the formatting character %n prints the number of DWORD written in the memory. An attacker can use this to read or write to memory locations or files, or simply to manipulate the value of the resulting text in unexpected ways. Reading or writing memory may result in program crashes and writing memory could result in the execution of arbitrary code if the attacker can write to the program stack.
  • String Format Overflow in syslog()
    This attack targets the format string vulnerabilities in the syslog() function. An attacker would typically inject malicious input in the format string parameter of the syslog function. This is a common problem, and many public vulnerabilities and associated exploits have been posted.