Overview
- Description
- An exploitable command injection vulnerability exists in the iocheckd service ‘I/O-Check’ function of the WAGO PFC 200 Firmware version 03.02.02(14). A specially crafted XML cache file written to a specific location on the device can be used to inject OS commands. An attacker can send a specially crafted packet to trigger the parsing of this cache file. At 0x1e9fc the extracted state value from the xml file is used as an argument to /etc/config-tools/config_interfaces interface=X1 state=<contents of state node> using sprintf(). This command is later executed via a call to system().
- Source
- talos-cna@cisco.com
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7.8
- Impact score
- 5.9
- Exploitability score
- 1.8
- Vector string
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 7.2
- Impact score
- 10
- Exploitability score
- 3.9
- Vector string
- AV:L/AC:L/Au:N/C:C/I:C/A:C
Weaknesses
- nvd@nist.gov
- CWE-78
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:wago:pfc200_firmware:03.02.02\\(14\\):*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6274B67D-C65B-4834-9DB5-6FB3D0ADD3A9"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:wago:pfc200:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "688A3248-7EAA-499D-A47C-A4D4900CDBD1"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
]