CVE-2016-0777 · threatengine.sh

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CVE

CVE-2016-0777

The resend_bytes function in roaming_common.c in the client in OpenSSH 5.x, 6.x, and 7.x before 7.1p2 allows remote serv

The resend_bytes function in roaming_common.c in the client in OpenSSH 5.x, 6.x, and 7.x before 7.1p2 allows remote servers to obtain sensitive information from process memory by requesting transmission of an entire buffer, as demonstrated by reading a private key.

MEDIUM · CVSS 6.5 EPSS 0.71658

Act now

EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
EPSS percentile: top 1% of all CVEs by exploitation likelihood
Public exploit or PoC is available

Sigma rules2 YARA rules0

⬡

Weakness Classification

CWE-200Exposure of Sensitive Information to an Unauthorized Actor

▤

Affected Products & Versions

6

sophos unified threat management softwareall versions
oracle linuxall versions
oracle solarisall versions
openbsd opensshall versions
hp remote device access virtual customer access system<= 15.07
apple mac os x<= 10.11.3

⚠

Public Exploits & PoCs

1

pocpacketstormsecurity.com · Qualys-Security-Advisory-OpenSSH-Overflow-Leak.htmlpacketstormsecurity.com

◈

Detection Rules (IDS/IPS)

2

et-openET EXPLOIT Possible CVE-2016-0777 Server Advertises Suspicious Roaming Supportattempted-user

et-openET EXPLOIT Possible CVE-2016-0777 Client Sent Roaming Resume Requestattempted-user

Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.

◈

Sigma Hunt Rules

2

Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.

productmediumSuspicious OpenSSH Daemon Error

productmediumOpenSSH Server Listening On Socket

See all related Sigma rules for this CVE

▣

Scoring & Timeline

6.5

MEDIUM · CVSS v3.1 · secalert@redhat.com

View on NVD

Attack Vector

Network Adjacent Local Physical

Attack Complexity

Low High

Privileges Required

None Low High

User Interaction

None Required

Scope

Unchanged Changed

Confidentiality

None Low High

Integrity

None Low High

Availability

None Low High

Published to NVD14 Jan 2016 · 10:59 PM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

⚑

Vendor Advisories

9

suse-csafopenSUSE-SU-2024:10174-1
siemens-csafSSA-412672
usnUSN-2869-1
rhsaRHSA-2016:0043Moderate
suse-csafSUSE-SU-2016:0117-1
Show all 9 vendor advisoriessuse-csafSUSE-SU-2016:0118-1
suse-csafSUSE-SU-2016:0119-1
suse-csafSUSE-SU-2016:0120-1
cisa-csafcisa-csaf-csaf_files-OT-white-2022-icsa-22-349-21

🔗

References & Sources

33

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10734Third Party Advisory

http://lists.apple.com/archives/security-announce/2016/Mar/msg00004.htmlMailing ListThird Party Advisory

http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176516.htmlMailing ListThird Party Advisory

http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175592.htmlMailing ListThird Party Advisory

http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175676.htmlMailing ListThird Party Advisory

http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176349.htmlMailing ListThird Party Advisory

Show all 33 references

http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00006.htmlMailing ListThird Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00007.htmlMailing ListThird Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00008.htmlMailing ListThird Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00009.htmlMailing ListThird Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00013.htmlMailing ListThird Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00014.htmlMailing ListThird Party Advisory

http://seclists.org/fulldisclosure/2016/Jan/44Mailing ListThird Party Advisory

http://www.debian.org/security/2016/dsa-3446Third Party Advisory

http://www.openssh.com/txt/release-7.1p2Vendor Advisory

http://www.openwall.com/lists/oss-security/2016/01/14/7Mailing ListThird Party Advisory

http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.htmlThird Party Advisory

http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlThird Party Advisory

http://www.securityfocus.com/archive/1/537295/100/0/threadedThird Party AdvisoryVDB Entry

http://www.securityfocus.com/bid/80695Third Party AdvisoryVDB Entry

http://www.securitytracker.com/id/1034671Third Party AdvisoryVDB Entry

http://www.ubuntu.com/usn/USN-2869-1Third Party Advisory

https://blogs.sophos.com/2016/02/17/utm-up2date-9-354-released/Third Party Advisory

https://blogs.sophos.com/2016/02/29/utm-up2date-9-319-released/Third Party Advisory

https://bto.bluecoat.com/security-advisory/sa109Third Party Advisory

https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05247375Third Party Advisory

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05356388Third Party Advisory

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05385680Third Party Advisory

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722Third Party Advisory

https://security.FreeBSD.org/advisories/FreeBSD-SA-16:07.openssh.ascThird Party Advisory

https://security.gentoo.org/glsa/201601-01Third Party Advisory

https://support.apple.com/HT206167Third Party Advisory

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