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ABB Cylon Aspect 3.08.00 (log(Mix/Yum)Lookup.php) Off-by-One Error in Log Parsing
<html><body><p>ABB Cylon Aspect 3.08.00 (log(Mix/Yum)Lookup.php) Off-by-One Error in Log Parsing
Vendor: ABB Ltd.
Product web page: https://www.global.abb
Affected version: NEXUS Series, MATRIX-2 Series, ASPECT-Enterprise, ASPECT-Studio
Firmware: <=3.08.00
Summary: ASPECT is an award-winning scalable building energy management
and control solution designed to allow users seamless access to their
building data through standard building protocols including smart devices.
Desc: A vulnerability was identified in a PHP script where an off-by-one
error in array access could lead to undefined behavior and potential DoS.
The issue arises in a loop that iterates over an array using a <= condition,
allowing access to an out-of-bounds index. This can trigger errors or unexpected
behavior when processing data, potentially crashing the application. Successful
exploitation of this vulnerability can lead to a crash or disruption of service,
especially if the script handles large data sets.
Tested on: GNU/Linux 3.15.10 (armv7l)
GNU/Linux 3.10.0 (x86_64)
GNU/Linux 2.6.32 (x86_64)
Intel(R) Atom(TM) Processor E3930 @ 1.30GHz
Intel(R) Xeon(R) Silver 4208 CPU @ 2.10GHz
PHP/7.3.11
PHP/5.6.30
PHP/5.4.16
PHP/4.4.8
PHP/5.3.3
AspectFT Automation Application Server
lighttpd/1.4.32
lighttpd/1.4.18
Apache/2.2.15 (CentOS)
OpenJDK Runtime Environment (rhel-2.6.22.1.-x86_64)
OpenJDK 64-Bit Server VM (build 24.261-b02, mixed mode)
Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
@zeroscience
Advisory ID: ZSL-2024-5861
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2024-5861.php
21.04.2024
--
$ cat project
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$ cat logYumLookup.php
...
...
$line = file($logFile);
{
$x = 0;
$data = "";
for ($i = 0; $i <= count($line); $i++) { // Off-by-one error
$data = $data . $line[$i]; // Potential out-of-bounds access
$nextNumber = $i + 1;
//need to check to see what the next line starts with so we know to include the next line in this bucket of data or a new bucket.
$arrValues[$x] = $data;
$x++;
$data = "";
}
}
...
...
$ cat logMixLookup.php
...
...
$x = 0;
$data = "";
for ($i = 0; $i <= count($line); $i++) { Off-by-one error
if ((strncmp($line[$i], "INFO", 4) == 0) || (strncmp($line[$i], "DEBUG", 5) == 0) || (strncmp($line[$i], "WARN", 4) == 0) || (strncmp($line[$i], "ERROR", 5) == 0) || (strncmp($line[$i], "FATAL", 5) == 0)) {
$logCode = lookupLogOptionValue(substr($line[$i], 0, 5));
...
...
$ curl http://192.168.73.31/logMixLookup.php?logFile=/var/log/yum.log
...
...
PHP Warning: Undefined array key 31337 in /var/log/yum.log on line 1337
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05 Nov 2024 00:00Current
5.8Medium risk
Vulners AI Score5.8