Pan OsOperating system · Paloaltonetworks

CVE-2017-17841

MEDIUM · 5.9 CVSS v3.0 Published 2018-01-10
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
68/100
Remediation priority · Elevated
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Palo Alto Networks PAN-OS 6.1, 7.1, and 8.0.x before 8.0.7, when an interface implements SSL decryption with RSA enabled or hosts a GlobalProtect portal or gateway, might allow remote attackers to decrypt TLS ciphertext data by leveraging a Bleichenbacher RSA padding oracle, aka a ROBOT attack.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

This is a Bleichenbacher RSA padding oracle (ROBOT attack) vulnerability in Palo Alto Networks PAN-OS. When an interface implements SSL decryption with RSA key exchange enabled or hosts a GlobalProtect portal/gateway, the device's responses to malformed RSA padding in TLS handshakes leak timing or other side-channel information that allows remote attackers to gradually decrypt TLS ciphertext data.

MitigationUpgrade PAN-OS to version 8.0.7 or later, or alternatively disable RSA key exchange in SSL decryption profiles and GlobalProtect configurations if upgrading is not immediately feasible.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Pan OsOperating system
Affected:= 6.1.0= 7.1.0= 7.1.1= 7.1.2= 7.1.3= 7.1.4= 7.1.4-h2= 7.1.5= 7.1.6= 7.1.7= 7.1.8= 7.1.9

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Check PAN-OS version
    Access the device dashboard or run 'show system info' in the CLI to display the installed PAN-OS version
    Affected if The version matches 6.1.0 or any 7.1.x version from 7.1.0 through 7.1.9 (including 7.1.4-h2)
  2. Identify SSL decryption profiles
    Navigate to Objects > SSL Decryption in the management interface or run 'show ssl-decryption' in the CLI to list all SSL decryption profiles
    Affected if Any SSL decryption profile exists and is applied to traffic interfaces
  3. Verify RSA key exchange is enabled in SSL decryption
    Open each SSL decryption profile and inspect the 'RSA Key Exchange' setting under the forward proxy or inbound inspection rules
    Affected if RSA key exchange is enabled (not disabled) in any active SSL decryption profile applied to traffic
  4. Identify GlobalProtect configurations
    Navigate to Network > GlobalProtect or run 'show global-protector' in the CLI to list configured GlobalProtect portals and gateways
    Affected if A GlobalProtect portal or gateway is enabled on any interface

A system is affected if it runs PAN-OS 6.1.0 or 7.1.0-7.1.9 and has either an active SSL decryption profile with RSA key exchange enabled, or an enabled GlobalProtect portal/gateway on any interface.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade PAN-OS to version 8.0.7 or later, or alternatively disable RSA key exchange in SSL decryption profiles and GlobalProtect configurations if upgrading is not immediately feasible.

Fix this in Pan Os Scoped from the published advisory
  • Consultation3.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,130
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Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2017-17841 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
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  • Version or environment caveats, and links to real fixes
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