{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2022-30699", "assignerOrgId": "206fc3a0-e175-490b-9eaa-a5738056c9f6", "assignerShortName": "NLnet Labs", "dateUpdated": "2024-09-16T18:29:59.438Z", "dateReserved": "2022-05-13T00:00:00", "datePublished": "2022-08-01T14:13:58.392776Z"}, "containers": {"cna": {"title": "Novel \"ghost domain names\" attack by updating almost expired delegation information", "datePublic": "2022-08-01T00:00:00", "providerMetadata": {"orgId": "206fc3a0-e175-490b-9eaa-a5738056c9f6", "shortName": "NLnet Labs", "dateUpdated": "2023-03-29T00:00:00"}, "descriptions": [{"lang": "en", "value": "NLnet Labs Unbound, up to and including version 1.16.1, is vulnerable to a novel type of the \"ghost domain names\" attack. The vulnerability works by targeting an Unbound instance. Unbound is queried for a rogue domain name when the cached delegation information is about to expire. The rogue nameserver delays the response so that the cached delegation information is expired. Upon receiving the delayed answer containing the delegation information, Unbound overwrites the now expired entries. This action can be repeated when the delegation information is about to expire making the rogue delegation information ever-updating. From version 1.16.2 on, Unbound stores the start time for a query and uses that to decide if the cached delegation information can be overwritten."}], "affected": [{"vendor": "NLnet Labs", "product": "Unbound", "versions": [{"version": "unspecified", "lessThanOrEqual": "1.16.1", "status": "affected", "versionType": "custom"}]}], "references": [{"url": "https://www.nlnetlabs.nl/downloads/unbound/CVE-2022-30698_CVE-2022-30699.txt"}, {"name": "FEDORA-2022-f89beb0640", "tags": ["vendor-advisory"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5L3ZFWZZFPBIL654BG75RWXUMPFQJ5EC/"}, {"name": "FEDORA-2022-0a914d5c6b", "tags": ["vendor-advisory"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D35CX4SCZVNKZTWJXPDFTHWZHINMGEZD/"}, {"name": "GLSA-202212-02", "tags": ["vendor-advisory"], "url": "https://security.gentoo.org/glsa/202212-02"}, {"name": "[debian-lts-announce] 20230329 [SECURITY] [DLA 3371-1] unbound security update", "tags": ["mailing-list"], "url": "https://lists.debian.org/debian-lts-announce/2023/03/msg00024.html"}], "credits": [{"lang": "en", "value": "We would like to thank Xiang Li from the Network and Information Security Lab of Tsinghua University for discovering and disclosing the vulnerability."}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T06:56:13.797Z"}, "title": "CVE Program Container", "references": [{"url": "https://www.nlnetlabs.nl/downloads/unbound/CVE-2022-30698_CVE-2022-30699.txt", "tags": ["x_transferred"]}, {"name": "FEDORA-2022-f89beb0640", "tags": ["vendor-advisory", "x_transferred"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5L3ZFWZZFPBIL654BG75RWXUMPFQJ5EC/"}, {"name": "FEDORA-2022-0a914d5c6b", "tags": ["vendor-advisory", "x_transferred"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D35CX4SCZVNKZTWJXPDFTHWZHINMGEZD/"}, {"name": "GLSA-202212-02", "tags": ["vendor-advisory", "x_transferred"], "url": "https://security.gentoo.org/glsa/202212-02"}, {"name": "[debian-lts-announce] 20230329 [SECURITY] [DLA 3371-1] unbound security update", "tags": ["mailing-list", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2023/03/msg00024.html"}]}]}}

{}

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{"affected_release": [{"advisory": "RHSA-2022:7622", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "unbound-0:1.16.2-2.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2022-11-08T00:00:00Z"}, {"advisory": "RHSA-2024:2045", "cpe": "cpe:/a:redhat:rhel_eus:8.6", "package": "unbound-0:1.7.3-17.el8_6.5", "product_name": "Red Hat Enterprise Linux 8.6 Extended Update Support", "release_date": "2024-04-25T00:00:00Z"}, {"advisory": "RHSA-2022:8062", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "unbound-0:1.16.2-2.el9", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2022-11-15T00:00:00Z"}], "bugzilla": {"description": "unbound: novel ghost domain attack that allows attackers to trigger continued resolvability of malicious domain names", "id": "2116729", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2116729"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "status": "verified"}, "cwe": "CWE-613", "details": ["NLnet Labs Unbound, up to and including version 1.16.1, is vulnerable to a novel type of the \"ghost domain names\" attack. The vulnerability works by targeting an Unbound instance. Unbound is queried for a rogue domain name when the cached delegation information is about to expire. The rogue nameserver delays the response so that the cached delegation information is expired. Upon receiving the delayed answer containing the delegation information, Unbound overwrites the now expired entries. This action can be repeated when the delegation information is about to expire making the rogue delegation information ever-updating. From version 1.16.2 on, Unbound stores the start time for a query and uses that to decide if the cached delegation information can be overwritten.", "A flaw was found in Unbound, which is vulnerable to a novel type of \"ghost domain names\" attack. The vulnerability works by targeting an Unbound instance. Unbound is queried for a subdomain of a rogue domain name. The rogue nameserver returns delegation information for the subdomain that updates Unbound's delegation cache. This action can be repeated before the expiry of the delegation information by querying Unbound for a second-level subdomain in which the rogue nameserver provides new delegation information. Since Unbound is a child-centric resolver, the ever-updating child delegation information can keep a rogue domain name resolvable long after revocation."], "name": "CVE-2022-30699", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "unbound", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "unbound", "product_name": "Red Hat Enterprise Linux 7"}], "public_date": "2022-08-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-30699\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-30699"], "threat_severity": "Moderate", "upstream_fix": "unbound 1.16.2"}