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ghsa-xmm9-hrfr-pphf
Vulnerability from github
Published
2023-03-16 18:30
Modified
2023-03-28 18:30
Severity ?
Details
Omron CJ1M unit v4.0 and prior has improper access controls on the memory region where the UM password is stored. If an adversary issues a PROGRAM AREA WRITE command to a specific memory region, they could overwrite the password. This may lead to disabling UM protections or setting a non-ASCII password (non-keyboard characters) and preventing an engineer from viewing or modifying the user program.
{
"affected": [],
"aliases": [
"CVE-2023-0811"
],
"database_specific": {
"cwe_ids": [
"CWE-284"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-16T18:15:00Z",
"severity": "CRITICAL"
},
"details": "Omron CJ1M unit v4.0 and prior has improper access controls on the memory region where the UM password is stored. If an adversary issues a PROGRAM AREA WRITE command to a specific memory region, they could overwrite the password. This may lead to disabling UM protections or setting a non-ASCII password (non-keyboard characters) and preventing an engineer from viewing or modifying the user program.",
"id": "GHSA-xmm9-hrfr-pphf",
"modified": "2023-03-28T18:30:30Z",
"published": "2023-03-16T18:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-0811"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-23-073-01"
},
{
"type": "WEB",
"url": "https://www.ia.omron.com/product/vulnerability/OMSR-2023-001_en.pdf"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
}
]
}
cve-2023-0811
Vulnerability from cvelistv5
Published
2023-03-16 17:41
Modified
2024-08-02 05:24
Severity ?
EPSS score ?
Summary
Omron CJ1M unit v4.0 and prior has improper access controls on the memory region where the UM password is stored. If an adversary issues a PROGRAM AREA WRITE command to a specific memory region, they could overwrite the password. This may lead to disabling UM protections or setting a non-ASCII password (non-keyboard characters) and preventing an engineer from viewing or modifying the user program.
References
Impacted products
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"value": "\n\n\u003cp\u003eOMRON has released the following countermeasures for users to implement: \u003c/p\u003e\u003cul\u003e\u003cli\u003eEnable the hardware switch to prohibit writing UM (DIP switch on front panel of the CPU Unit) \u003c/li\u003e\u003cli\u003eSet UM read protection password and \u201cProhibit from overwriting to a protected program \u201coption. \u003c/li\u003e\u003c/ul\u003e\u003cp\u003eIf the countermeasures cannot be applied, OMRON recommends that customers take the following mitigation measures: \u003c/p\u003e\u003cp\u003eSecurity measures to prevent unauthorized access: \u003c/p\u003e\u003cul\u003e\u003cli\u003eIf the following products and versions are used, the risk of attacks by an attacker via the network can be reduced by taking the following measures. \u003cul\u003e\u003cli\u003eEnable the FINS write protection function. \u003c/li\u003e\u003cli\u003eSelect the Protect by IP Address \u003c/li\u003e\u003c/ul\u003e\u003c/li\u003e\u003cli\u003eMinimize connection of control systems and equipment to open networks, so that untrusted devices will be unable to access them. \u0026nbsp;\u003c/li\u003e\u003cli\u003eImplement firewalls (by shutting down unused communications ports, limiting communications hosts, limiting access to FINS port (9600)) and isolate them from the IT network. \u003c/li\u003e\u003cli\u003eUse a virtual private network (VPN) for remote access to control systems and equipment. \u003c/li\u003e\u003cli\u003eUse strong passwords and change them frequently. \u003c/li\u003e\u003cli\u003eInstall physical controls so that only authorized personnel can access control systems and equipment. \u003c/li\u003e\u003cli\u003eScan virus to ensure safety of any USB drives or similar devices before connecting them to systems and devices. \u003c/li\u003e\u003cli\u003eEnforce multifactor authentication to all devices with remote access to control systems and equipment whenever possible. \u003c/li\u003e\u003cli\u003eAnti-virus protection \u003cul\u003e\u003cli\u003eProtect any PC with access to the control system against malware and ensure installation and maintenance of up-to-date commercial grade anti-virus software protection. \u003c/li\u003e\u003c/ul\u003e\u003c/li\u003e\u003cli\u003eData input and output protection \u003cul\u003e\u003cli\u003eValidation processing such as backup and range check to cope with unintentional modification of input/output data to control systems and devices. \u003c/li\u003e\u003c/ul\u003e\u003c/li\u003e\u003cli\u003eData recovery \u003cul\u003e\u003cli\u003ePeriodical data backup and maintenance to prepare for data loss. \u003c/li\u003e\u003c/ul\u003e\u003c/li\u003e\u003c/ul\u003e\u003cp\u003eFor more information, see Omron\u2019s \u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://www.ia.omron.com/product/vulnerability/OMSR-2023-001_en.pdf\"\u003eSecurity Advisory\u003c/a\u003e.\u003c/p\u003e\u003cbr\u003e\n\n\u003cbr\u003e"
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"assignerShortName": "icscert",
"cveId": "CVE-2023-0811",
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"dateReserved": "2023-02-13T15:41:55.590Z",
"dateUpdated": "2024-08-02T05:24:34.505Z",
"state": "PUBLISHED"
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.