gsd-2018-1121
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
procps-ng, procps is vulnerable to a process hiding through race condition. Since the kernel's proc_pid_readdir() returns PID entries in ascending numeric order, a process occupying a high PID can use inotify events to determine when the process list is being scanned, and fork/exec to obtain a lower PID, thus avoiding enumeration. An unprivileged attacker can hide a process from procps-ng's utilities by exploiting a race condition in reading /proc/PID entries. This vulnerability affects procps and procps-ng up to version 3.3.15, newer versions might be affected also.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2018-1121",
"description": "procps-ng, procps is vulnerable to a process hiding through race condition. Since the kernel\u0027s proc_pid_readdir() returns PID entries in ascending numeric order, a process occupying a high PID can use inotify events to determine when the process list is being scanned, and fork/exec to obtain a lower PID, thus avoiding enumeration. An unprivileged attacker can hide a process from procps-ng\u0027s utilities by exploiting a race condition in reading /proc/PID entries. This vulnerability affects procps and procps-ng up to version 3.3.15, newer versions might be affected also.",
"id": "GSD-2018-1121",
"references": [
"https://www.suse.com/security/cve/CVE-2018-1121.html",
"https://security.archlinux.org/CVE-2018-1121",
"https://packetstormsecurity.com/files/cve/CVE-2018-1121"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2018-1121"
],
"details": "procps-ng, procps is vulnerable to a process hiding through race condition. Since the kernel\u0027s proc_pid_readdir() returns PID entries in ascending numeric order, a process occupying a high PID can use inotify events to determine when the process list is being scanned, and fork/exec to obtain a lower PID, thus avoiding enumeration. An unprivileged attacker can hide a process from procps-ng\u0027s utilities by exploiting a race condition in reading /proc/PID entries. This vulnerability affects procps and procps-ng up to version 3.3.15, newer versions might be affected also.",
"id": "GSD-2018-1121",
"modified": "2023-12-13T01:22:36.875090Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
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"ASSIGNER": "secalert@redhat.com",
"ID": "CVE-2018-1121",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "procps-ng, procps",
"version": {
"version_data": [
{
"version_affected": "=",
"version_value": "up to procps-ng 3.3.15 and newer"
}
]
}
}
]
},
"vendor_name": "[UNKNOWN]"
}
]
}
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"data_version": "4.0",
"description": {
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"value": "procps-ng, procps is vulnerable to a process hiding through race condition. Since the kernel\u0027s proc_pid_readdir() returns PID entries in ascending numeric order, a process occupying a high PID can use inotify events to determine when the process list is being scanned, and fork/exec to obtain a lower PID, thus avoiding enumeration. An unprivileged attacker can hide a process from procps-ng\u0027s utilities by exploiting a race condition in reading /proc/PID entries. This vulnerability affects procps and procps-ng up to version 3.3.15, newer versions might be affected also."
}
]
},
"impact": {
"cvss": [
{
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 3.9,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L",
"version": "3.0"
}
]
},
"problemtype": {
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"description": [
{
"cweId": "CWE-367",
"lang": "eng",
"value": "CWE-367"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "http://seclists.org/oss-sec/2018/q2/122",
"refsource": "MISC",
"url": "http://seclists.org/oss-sec/2018/q2/122"
},
{
"name": "http://www.securityfocus.com/bid/104214",
"refsource": "MISC",
"url": "http://www.securityfocus.com/bid/104214"
},
{
"name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1121",
"refsource": "MISC",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1121"
},
{
"name": "https://www.exploit-db.com/exploits/44806/",
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"url": "https://www.exploit-db.com/exploits/44806/"
},
{
"name": "https://www.qualys.com/2018/05/17/procps-ng-audit-report-advisory.txt",
"refsource": "MISC",
"url": "https://www.qualys.com/2018/05/17/procps-ng-audit-report-advisory.txt"
}
]
}
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:procps_project:procps:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndIncluding": "3.3.15",
"vulnerable": true
}
],
"operator": "OR"
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"ID": "CVE-2018-1121"
},
"data_format": "MITRE",
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"data_version": "4.0",
"description": {
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{
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"value": "procps-ng, procps is vulnerable to a process hiding through race condition. Since the kernel\u0027s proc_pid_readdir() returns PID entries in ascending numeric order, a process occupying a high PID can use inotify events to determine when the process list is being scanned, and fork/exec to obtain a lower PID, thus avoiding enumeration. An unprivileged attacker can hide a process from procps-ng\u0027s utilities by exploiting a race condition in reading /proc/PID entries. This vulnerability affects procps and procps-ng up to version 3.3.15, newer versions might be affected also."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "CWE-362"
}
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"references": {
"reference_data": [
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"name": "https://www.qualys.com/2018/05/17/procps-ng-audit-report-advisory.txt",
"refsource": "MISC",
"tags": [
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],
"url": "https://www.qualys.com/2018/05/17/procps-ng-audit-report-advisory.txt"
},
{
"name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1121",
"refsource": "CONFIRM",
"tags": [
"Issue Tracking",
"Third Party Advisory"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1121"
},
{
"name": "[oss-security] 20180517 Qualys Security Advisory - Procps-ng Audit Report",
"refsource": "MLIST",
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],
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"url": "http://www.securityfocus.com/bid/104214"
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]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.0"
},
"exploitabilityScore": 2.2,
"impactScore": 3.6
}
},
"lastModifiedDate": "2020-06-30T16:15Z",
"publishedDate": "2018-06-13T20:29Z"
}
}
}
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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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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.
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