CVE-2019-6111
67Vexday Risk Score
Prioritize patching. It exploitation observed by VulnCheck and has a public proof of concept.
ssvc Actcvss 5.9epss 58%
from disclosure to weapon0 days
Published on NVDJan 31
1st PoCJan 11
VulnCheck+641d
exploitation probability
58%top 1% of all CVEs
observed exploitation
yesVulnCheck
5 public exploit(s)
An issue was discovered in OpenSSH 7.9. Due to the scp implementation being derived from 1983 rcp, the server chooses which files/directories are sent to the client. However, the scp client only performs cursory validation of the object name returned (only directory traversal attacks are prevented). A malicious scp server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the scp client target directory. If recursive operation (-r) is performed, the server can manipulate subdirectories as well (for example, to overwrite the .ssh/authorized_keys file).
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected products
n/a · n/apublic PoCs found — 5
exploitdbwww.exploit-db.com/exploits/46516unverifiedexploitdbwww.exploit-db.com/exploits/46193unverifiedgithubgithub.com/53n7hu/SNP★ 4githubgithub.com/mbadanoiu/MAL-008★ 0cve_referencewww.exploit-db.com/exploits/46193/unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00058.htmlhttps://access.redhat.com/errata/RHSA-2019:3702https://bugzilla.redhat.com/show_bug.cgi?id=1677794https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdfhttps://cvsweb.openbsd.org/src/usr.bin/ssh/scp.chttps://lists.apache.org/thread.html/c45d9bc90700354b58fb7455962873c44229841880dcb64842fa7d23%40%3Cdev.mina.apache.org%3Ehttps://lists.apache.org/thread.html/c7301cab36a86825359e1b725fc40304d1df56dc6d107c1fe885148b%40%3Cdev.mina.apache.org%3Ehttps://lists.apache.org/thread.html/d540139359de999b0f1c87d05b715be4d7d4bec771e1ae55153c5c7a%40%3Cdev.mina.apache.org%3Ehttps://lists.apache.org/thread.html/e47597433b351d6e01a5d68d610b4ba195743def9730e49561e8cf3f%40%3Cdev.mina.apache.org%3Ehttps://lists.debian.org/debian-lts-announce/2019/03/msg00030.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W3YVQ2BPTOVDCFDVNC2GGF5P5ISFG37G/https://security.gentoo.org/glsa/201903-16