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CVE-2017-7934· NVD / CVE Program· CNA icscert

An Improper Authentication issue was discovered in OSIsoft PI Server 2017 PI Data Archive versions prior to 2017.

An Improper Authentication issue was discovered in OSIsoft PI Server 2017 PI Data Archive versions prior to 2017. PI Network Manager using older protocol versions contains a flaw that could allow a malicious user to authenticate with a server and then cause PI Network Manager to behave in an undefined manner.

MediumCVSS 5.9 · v3.0—No exploit No fix recorded
Published
Aug 25, 2017
Updated
Jun 16, 2026
EPSS
2.1% · 81th percentile
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Report tools

JSON

Action score

24

Monitor

Low priority for now.

CVSS
23 / 40 · 5.9 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.1%

Affected systems

VendorProduct
osisoftpi data archive

Affected versions

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

  • osisoft pi data archiveup to 3.4.410.1256 inclusive

Versions reported by the vendor

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

  • n/a OSIsoft PI Server 2017

    • OSIsoft PI Server 2017affected

Same product

osisoft: all records

Other highest-scoring records for the same primary product.

  • CVE-2020-10604In OSIsoft PI System multiple products and versions, a remote, unauthenticated attacker could crash PI Network Manager service through speci
    31Monitor
  • CVE-2018-7533An Incorrect Default Permissions issue was discovered in OSIsoft PI Data Archive versions 2017 and prior.
    31Monitor
  • CVE-2018-7529A Deserialization of Untrusted Data issue was discovered in OSIsoft PI Data Archive versions 2017 and prior.
    31Monitor
  • CVE-2017-7930An Improper Authentication issue was discovered in OSIsoft PI Server 2017 PI Data Archive versions prior to 2017.
    30Monitor
  • CVE-2020-10600An authenticated remote attacker could crash PI Archive Subsystem when the subsystem is working under memory pressure.
    28Monitor
  • CVE-2018-7531An Improper Input Validation issue was discovered in OSIsoft PI Data Archive versions 2017 and prior.
    23Monitor

Remediation

Which version to upgrade to

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

No fix version is recorded for this entry. Check the references for vendor advisories.

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.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

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

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-287 · Improper Authentication

CVSS vector

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

nvd-primary

Root cause

Authentication is added route by route instead of being enforced in one place. When a route added later bypasses the shared middleware, the session check never runs for it.

The bug in code

The whole CWE-287 class

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

Vulnerable

ts
app.use("/admin", requireSession, adminRouter);
// Route added later skips the middlewareapp.post("/admin-api/config", updateConfig);

Fixed

ts
const admin = express.Router();admin.use(requireSession, requireRole("admin"));
admin.post("/config", updateConfig);app.use("/admin", admin);

Attack context

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

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

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

All records