CVE-2018-1121
Vulnerability from cvelistv5
Published
2018-06-13 20:00
Modified
2024-08-05 03:51
Severity ?
EPSS score ?
Summary
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.
References
Impacted products
Vendor | Product | Version | ||
---|---|---|---|---|
[UNKNOWN] | procps-ng, procps |
Version: up to procps-ng 3.3.15 and newer |
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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.", }, ], metrics: [ { cvssV3_0: { 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", }, }, ], problemTypes: [ { descriptions: [ { cweId: "CWE-367", description: "CWE-367", lang: "en", type: "CWE", }, ], }, ], providerMetadata: { dateUpdated: "2020-06-30T15:26:18", orgId: "53f830b8-0a3f-465b-8143-3b8a9948e749", shortName: "redhat", }, references: [ { name: "44806", tags: [ "exploit", "x_refsource_EXPLOIT-DB", ], url: "https://www.exploit-db.com/exploits/44806/", }, { tags: [ "x_refsource_CONFIRM", ], url: "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1121", }, { name: "104214", tags: [ "vdb-entry", "x_refsource_BID", ], url: "http://www.securityfocus.com/bid/104214", }, { name: "[oss-security] 20180517 Qualys Security Advisory - Procps-ng Audit Report", tags: [ "mailing-list", "x_refsource_MLIST", ], url: "http://seclists.org/oss-sec/2018/q2/122", }, { tags: [ "x_refsource_MISC", ], url: "https://www.qualys.com/2018/05/17/procps-ng-audit-report-advisory.txt", }, ], }, }, cveMetadata: { assignerOrgId: "53f830b8-0a3f-465b-8143-3b8a9948e749", assignerShortName: "redhat", cveId: "CVE-2018-1121", datePublished: "2018-06-13T20:00:00", dateReserved: "2017-12-04T00:00:00", dateUpdated: "2024-08-05T03:51:48.742Z", state: "PUBLISHED", }, dataType: "CVE_RECORD", dataVersion: "5.1", "vulnerability-lookup:meta": { nvd: "{\"cve\":{\"id\":\"CVE-2018-1121\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2018-06-13T20:29:00.337\",\"lastModified\":\"2024-11-21T03:59:13.500\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"procps-ng, procps is vulnerable to a process hiding through race condition. 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Sightings
Author | Source | Type | Date |
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Nomenclature
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