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NVD / CVE Program· CNA puppet

CVE-2017-2295: Versions of Puppet prior to 4.10.1 will deserialize data off the wire (from the agent to the server, in this case) with a attacker-specified…

HighCVSS 8.2 · v3.0—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 33/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 2.7% (FIRST EPSS); higher than 86.5% of all records.
  • Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: puppet (Debian:11) 4.8.2-5; puppet (Debian:7) 2.7.23-1~deb7u4; puppet (Debian:8) 3.7.2-4+deb8u1.

Low priority for now. Upgrade to puppet (Debian:11) 4.8.2-5; puppet (Debian:7) 2.7.23-1~deb7u4; puppet (Debian:8) 3.7.2-4+deb8u1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Versions of Puppet prior to 4.10.1 will deserialize data off the wire (from the agent to the server, in this case) with a attacker-specified format. This could be used to force YAML deserialization in an unsafe manner, which would lead to remote code execution. This change constrains the format of data on the wire to PSON or safely decoded YAML.

Published
Jul 5, 2017
Updated
Jun 16, 2026
EPSS
2.7% · 86th percentile

Report tools

JSON

Action score

33

Monitor

Low priority for now.

CVSS
32 / 40 · 8.2 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.7%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2017-2295

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  • when exploit code appears or is weaponized
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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
puppetpuppet
debiandebian linux

Versions reported by the vendor

Affected version ranges reported by the assigning authority (puppet). Independent of NVD's CPE analysis and usually ahead of it.

  • Puppet Puppet server

    • Puppet prior to 4.10.1affected

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • debian debian linux8.0
  • puppet puppetup to 4.10.0 inclusive

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:11puppetbefore 4.8.2-54.8.2-5
Debian:7puppetbefore 2.7.23-1~deb7u42.7.23-1~deb7u4
Debian:8puppetbefore 3.7.2-4+deb8u13.7.2-4+deb8u1
Red Hat:satellite_capsule:6.3::el7foremanbefore 0:1.15.6.34-1.el7sat0:1.15.6.34-1.el7sat
Red Hat:satellite_capsule:6.3::el7foreman-bootloaders-redhatbefore 0:201801241201-2.el7sat0:201801241201-2.el7sat
Red Hat:satellite_capsule:6.3::el7foreman-bootloaders-redhat-tftpbootbefore 0:201801241201-2.el7sat0:201801241201-2.el7sat
Red Hat:satellite_capsule:6.3::el7foreman-debugbefore 0:1.15.6.34-1.el7sat0:1.15.6.34-1.el7sat
Red Hat:satellite_capsule:6.3::el7foreman-discovery-imagebefore 1:3.4.4-1.el7sat1:3.4.4-1.el7sat
Red Hat:satellite_capsule:6.3::el7foreman-installerbefore 1:1.15.6.8-1.el7sat1:1.15.6.8-1.el7sat
Red Hat:satellite_capsule:6.3::el7foreman-installer-katellobefore 0:3.4.5.26-1.el7sat0:3.4.5.26-1.el7sat
Red Hat:satellite_capsule:6.3::el7foreman-proxybefore 0:1.15.6.4-1.el7sat0:1.15.6.4-1.el7sat
Red Hat:satellite_capsule:6.3::el7foreman-proxy-contentbefore 0:3.4.5-15.el7sat0:3.4.5-15.el7sat
Red Hat:satellite_capsule:6.3::el7foreman-selinuxbefore 0:1.15.6.2-1.el7sat0:1.15.6.2-1.el7sat
Red Hat:satellite_capsule:6.3::el7hierabefore 0:1.3.1-2.el7sat0:1.3.1-2.el7sat
Red Hat:satellite_capsule:6.3::el7katellobefore 0:3.4.5-15.el7sat0:3.4.5-15.el7sat
Red Hat:satellite_capsule:6.3::el7katello-certs-toolsbefore 0:2.4.0-1.el7sat0:2.4.0-1.el7sat
Red Hat:satellite_capsule:6.3::el7katello-client-bootstrapbefore 0:1.5.1-1.el7sat0:1.5.1-1.el7sat
Red Hat:satellite_capsule:6.3::el7katello-debugbefore 0:3.4.5-15.el7sat0:3.4.5-15.el7sat
Red Hat:satellite_capsule:6.3::el7katello-installer-basebefore 0:3.4.5.26-1.el7sat0:3.4.5.26-1.el7sat
Red Hat:satellite_capsule:6.3::el7katello-selinuxbefore 0:3.0.2-1.el7sat0:3.0.2-1.el7sat
Red Hat:satellite_capsule:6.3::el7katello-servicebefore 0:3.4.5-15.el7sat0:3.4.5-15.el7sat
Red Hat:satellite_capsule:6.3::el7kobobefore 0:0.5.1-1.el7sat0:0.5.1-1.el7sat
Red Hat:satellite_capsule:6.3::el7pulpbefore 0:2.13.4.6-1.el7sat0:2.13.4.6-1.el7sat
Red Hat:satellite_capsule:6.3::el7pulp-admin-clientbefore 0:2.13.4.6-1.el7sat0:2.13.4.6-1.el7sat

+96

Same product

puppet: all records

Other highest-scoring records for the same primary product.

  • CVE-2016-2785Puppet Server before 2.3.2 and Ruby puppetmaster in Puppet 4.x before 4.4.2 and in Puppet Agent before 1.4.2 might allow remote attackers…
    40Plan
  • CVE-2013-1640The (1) template and (2) inline_template functions in the master server in Puppet before 2.6.18, 2.7.x before 2.7.21, and 3.1.x before…
    37Monitor
  • CVE-2021-27021A flaw was discovered in Puppet DB, this flaw results in an escalation of privileges which allows the user to delete tables via an SQL…
    35Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2013-4956Aug 20, 2013 · Puppet Module Tool (PMT), as used in Puppet 2.7.x before 2.7.23 and 3.2.x before 3.2.4, and Puppet Enterprise 2.8.x before 2.8.3 and 3.0.x…
    14Monitor
  • ← EarlierCVE-2011-0528Feb 17, 2014 · Puppet 2.6.0 through 2.6.3 does not properly restrict access to node resources, which allows remote authenticated Puppet nodes to read or…
    22Monitor
  • Later →CVE-2014-3250Dec 11, 2017 · The default vhost configuration file in Puppet before 3.6.2 does not include the SSLCARevocationCheck directive, which might allow remote…
    26Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:puppet4.8.2-5 · Debian:11Package registry (OSV)
red hat:foreman0:1.15.6.34-1.el7sat · Red Hat:satellite_capsule:6.3::el7Package registry (OSV)
red hat:foreman-bootloaders-redhat0:201801241201-2.el7sat · Red Hat:satellite_capsule:6.3::el7Package registry (OSV)
red hat:foreman-bootloaders-redhat-tftpboot0:201801241201-2.el7sat · Red Hat:satellite_capsule:6.3::el7Package registry (OSV)
red hat:foreman-debug0:1.15.6.34-1.el7sat · Red Hat:satellite_capsule:6.3::el7Package registry (OSV)
red hat:foreman-discovery-image1:3.4.4-1.el7sat · Red Hat:satellite_capsule:6.3::el7Package registry (OSV)
red hat:foreman-installer1:1.15.6.8-1.el7sat · Red Hat:satellite_capsule:6.3::el7Package registry (OSV)
red hat:foreman-installer-katello0:3.4.5.26-1.el7sat · Red Hat:satellite_capsule:6.3::el7Package registry (OSV)
red hat:foreman-proxy0:1.15.6.4-1.el7sat · Red Hat:satellite_capsule:6.3::el7Package registry (OSV)
red hat:foreman-proxy-content0:3.4.5-15.el7sat · Red Hat:satellite_capsule:6.3::el7Package registry (OSV)
red hat:foreman-selinux0:1.15.6.2-1.el7sat · Red Hat:satellite_capsule:6.3::el7Package registry (OSV)
red hat:hiera0:1.3.1-2.el7sat · Red Hat:satellite_capsule:6.3::el7Package registry (OSV)
red hat:katello0:3.4.5-15.el7sat · Red Hat:satellite_capsule:6.3::el7Package registry (OSV)
suse:puppet3.8.5-15.3.3 · SUSE:Linux Enterprise Desktop 12 SP2Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
none

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Changed
Confidentiality impact
High
Integrity impact
High
Availability impact
None

Weakness class (CWE)

CWE-502 · Deserialization of Untrusted Data

CVSS vector

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N

nvd-primary

Root cause

Data received over the network is deserialized into the language’s native object format without verifying its source. Code paths inside the object can be triggered during deserialization.

The bug in code

The whole CWE-502 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

python
payload = sock.recv(65536)job = pickle.loads(payload)

Fixed

python
payload = sock.recv(65536)if not hmac.compare_digest(sign(payload), header_sig):    raise PermissionError("invalid signature")job = JobSchema.validate(json.loads(payload))

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records