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70 lines
2.3 KiB
YAML
70 lines
2.3 KiB
YAML
id: CVE-2019-6443
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info:
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name: NTPsec > 1.1.3 - 'ctl_getitem' Out-of-Bounds Read
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author: pussycat0x,0x_Akoko
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severity: critical
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description: |
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NTPsec before 1.1.3 contains a stack-based buffer over-read caused by a bug in ctl_getitem in read_sysvars in ntp_control.c in ntpd, letting local or remote attackers read sensitive memory, exploit requires sending crafted control requests.
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impact: |
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Attackers can read sensitive memory contents, potentially leading to information disclosure or further exploitation.
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remediation: |
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Update to version 1.1.3 or later.
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reference:
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- https://nvd.nist.gov/vuln/detail/CVE-2019-6443
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- https://www.exploit-db.com/exploits/46175
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classification:
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cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
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cvss-score: 9.1
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cve-id: CVE-2019-6443
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cwe-id: CWE-125
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epss-score: 0.31557
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epss-percentile: 0.9661
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cpe: cpe:2.3:a:ntpsec:ntpsec:*:*:*:*:*:*:*:*
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metadata:
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verified: true
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vendor: ntpsec
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product: ntpsec
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shodan-query: "ntpsec"
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tags: cve,cve2019,ntp,ntpsec,udp,passive,vkev
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javascript:
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- pre-condition: |
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isUDPPortOpen(Host, Port);
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code: |
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const c = require("nuclei/net");
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const payload = "160203e80000000000000000";
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const conn = c.Open('udp', `${Host}:${Port}`);
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conn.SendHex(payload);
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let resp = conn.RecvFullString(1024);
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const versionMatch = resp.match(/version="([^"]+)"/);
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let version = resp;
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if (versionMatch && versionMatch[1]) {
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let versionStr = versionMatch[1];
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if (versionStr.indexOf('+') !== -1) {
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version = versionStr.split('+')[0].trim();
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} else {
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version = versionStr.replace(/\s+\d{4}-\d{2}-\d{2}.*$/, '').trim();
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}
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}
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Export(version);
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args:
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Host: "{{Host}}"
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Port: 123
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matchers:
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- type: dsl
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dsl:
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- contains(response, "ntpsec")
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- compare_versions(version, '< 1.1.3')
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condition: and
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extractors:
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- type: regex
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name: version
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group: 1
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regex:
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- 'ntpd ntpsec-([0-9.]+)'
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# digest: 490a004630440220231d3d4ca7e39a82e8c396c1d6c94bb7dc048a24f98e0c58338fa96a35ff03450220140f15ca3c83efdd543a1ed73b3d3ba89f79186c9682f84124055c8f359a6aeb:922c64590222798bb761d5b6d8e72950 |