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Mark J. Cox 2022-04-12 16:23:51 +01:00
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2021/31xxx/CVE-2021-31805.json
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{
"data_type": "CVE",
"data_format": "MITRE",
"data_version": "4.0",
"CVE_data_meta": {
"ASSIGNER": "security@apache.org",
"ID": "CVE-2021-31805",
"ASSIGNER": "cve@mitre.org",
"STATE": "RESERVED"
"STATE": "PUBLIC",
"TITLE": "Forced OGNL evaluation, when evaluated on raw not validated user input in tag attributes, may lead to RCE."
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Apache Struts",
"version": {
"version_data": [
{
"version_value": "2.0.0 to 2.5.29"
}
]
}
}
]
},
"vendor_name": "Apache Software Foundation"
}
]
}
},
"credit": [
{
"lang": "eng",
"value": "Apache Struts would like to thank Chris McCown for reporting this issue!"
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided."
"value": "The fix issued for CVE-2020-17530 was incomplete. So from Apache Struts 2.0.0 to 2.5.29, still some of the tag’s attributes could perform a double evaluation if a developer applied forced OGNL evaluation by using the %{...} syntax. Using forced OGNL evaluation on untrusted user input can lead to a Remote Code Execution and security degradation."
}
]
}
}
},
"generator": {
"engine": "Vulnogram 0.0.9"
},
"impact": [
{}
],
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-917 Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')"
}
]
}
]
},
"references": {
"reference_data": [
{
"refsource": "CONFIRM",
"url": "https://cwiki.apache.org/confluence/display/WW/S2-062"
}
]
},
"source": {
"discovery": "UNKNOWN"
},
"work_around": [
{
"lang": "eng",
"value": "Avoid using forced OGNL evaluation on untrusted user input, and/or upgrade to Struts 2.5.30 which checks if expression evaluation won’t lead to the double evaluation.\n\nPlease read our Security Bulletin S2-062 for more details."
}
]
}