CWE-1389
Incorrect Parsing of Numbers with Different Radices
The product parses numeric input assuming base 10 (decimal) values, but it does not account for inputs that use a different base number (radix).
CVE-2024-26015 (GCVE-0-2024-26015)
Vulnerability from cvelistv5
Published
2024-07-09 15:33
Modified
2024-08-01 23:59
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-1389 - Improper access control
Summary
An incorrect parsing of numbers with different radices vulnerability [CWE-1389] in FortiProxy version 7.4.3 and below, version 7.2.10 and below, version 7.0.17 and below and FortiOS version 7.4.3 and below, version 7.2.8 and below, version 7.0.15 and below IP address validation feature may permit an unauthenticated attacker to bypass the IP blocklist via crafted requests.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| ► | Fortinet | FortiProxy |
Version: 7.4.0 ≤ 7.4.3 Version: 7.2.0 ≤ 7.2.10 Version: 7.0.0 ≤ 7.0.18 |
|
{
"containers": {
"adp": [
{
"affected": [
{
"cpes": [
"cpe:2.3:a:fortinet:fortiproxy:7.0.0:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiproxy:7.2.0:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiproxy:7.4.0:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "fortiproxy",
"vendor": "fortinet",
"versions": [
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"status": "affected",
"version": "7.0.0",
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}
]
},
{
"cpes": [
"cpe:2.3:o:fortinet:fortios:7.0.0:*:*:*:*:*:*:*",
"cpe:2.3:o:fortinet:fortios:7.2.0:*:*:*:*:*:*:*",
"cpe:2.3:o:fortinet:fortios:7.4.0:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "fortios",
"vendor": "fortinet",
"versions": [
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"version": "7.0.0",
"versionType": "custom"
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"lessThan": "7.3.0",
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},
{
"lessThanOrEqual": "7.4.3",
"status": "affected",
"version": "7.4.0",
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}
]
}
],
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-26015",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-07-09T16:00:34.064801Z",
"version": "2.0.3"
},
"type": "ssvc"
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"providerMetadata": {
"dateUpdated": "2024-07-09T16:05:01.819Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
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"title": "CISA ADP Vulnrichment"
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"references": [
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"name": "https://fortiguard.fortinet.com/psirt/FG-IR-23-446",
"tags": [
"x_transferred"
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"url": "https://fortiguard.fortinet.com/psirt/FG-IR-23-446"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "FortiProxy",
"vendor": "Fortinet",
"versions": [
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"status": "affected",
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{
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{
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},
{
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"product": "FortiOS",
"vendor": "Fortinet",
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"status": "affected",
"version": "7.2.0",
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{
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"status": "affected",
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"versionType": "semver"
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]
}
],
"descriptions": [
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"lang": "en",
"value": "An incorrect parsing of numbers with different radices vulnerability [CWE-1389] in FortiProxy version 7.4.3 and below, version 7.2.10 and below, version 7.0.17 and below and FortiOS version 7.4.3 and below, version 7.2.8 and below, version 7.0.15 and below IP address validation feature may permit an unauthenticated attacker to bypass the IP blocklist via crafted requests."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "NONE",
"baseScore": 3.1,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N/E:F/RL:W/RC:R",
"version": "3.1"
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"problemTypes": [
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"descriptions": [
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"description": "Improper access control",
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"providerMetadata": {
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"orgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
"shortName": "fortinet"
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"references": [
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"url": "https://fortiguard.fortinet.com/psirt/FG-IR-23-446"
}
],
"solutions": [
{
"lang": "en",
"value": "Please upgrade to FortiProxy version 7.4.4 or above \nPlease upgrade to FortiOS version 7.6.0 or above \nPlease upgrade to FortiOS version 7.4.4 or above \n"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
"assignerShortName": "fortinet",
"cveId": "CVE-2024-26015",
"datePublished": "2024-07-09T15:33:30.260Z",
"dateReserved": "2024-02-14T09:18:43.246Z",
"dateUpdated": "2024-08-01T23:59:31.104Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
Mitigation
Phase: Implementation
Strategy: Enforcement by Conversion
Description:
- If only decimal-based values are expected in the application, conditional checks should be created in a way that prevent octal or hexadecimal strings from being checked. This can be achieved by converting any numerical string to an explicit base-10 integer prior to the conditional check, to prevent octal or hex values from ever being checked against the condition.
Mitigation
Phase: Implementation
Strategy: Input Validation
Description:
- If various numerical bases do need to be supported, check for leading values indicating the non-decimal base you wish to support (such as 0x for hex) and convert the numeric strings to integers of the respective base. Reject any other alternative-base string that is not intentionally supported by the application.
Mitigation
Phase: Implementation
Strategy: Input Validation
Description:
- If regular expressions are used to validate IP addresses, ensure that they are bounded using ^ and $ to prevent base-prepended IP addresses from being matched.
No CAPEC attack patterns related to this CWE.