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CVE-2018-0489· NVD / CVE Program· CNA debian

Shibboleth XMLTooling-C before 1.6.4, as used in Shibboleth Service Provider before 2.6.1.4 on Windows and other products, mishandles digita

Shibboleth XMLTooling-C before 1.6.4, as used in Shibboleth Service Provider before 2.6.1.4 on Windows and other products, mishandles digital signatures of user data, which allows remote attackers to obtain sensitive information or conduct impersonation attacks via crafted XML data. NOTE: this issue exists because of an incomplete fix for CVE-2018-0486.

MediumCVSS 6.5 · v3.0—No exploit Fix available
Published
Feb 27, 2018
Updated
Jun 16, 2026
EPSS
2.1% · 81th percentile
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Report tools

JSON

Action score

27

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.1%

Affected systems

VendorProduct
shibbolethxmltooling-c
debiandebian linux
arubanetworksclearpass

Affected versions

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

  • arubanetworks clearpass6.6.0 and later · up to 6.6.9 inclusive
  • arubanetworks clearpass6.7.0 and later · before 6.7.2
  • debian debian linux7.0
  • debian debian linux8.0
  • debian debian linux9.0
  • shibboleth xmltooling-cbefore 1.6.4

Versions reported by the vendor

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

  • n/a Shibboleth XMLTooling-C before 1.6.4

    • Shibboleth XMLTooling-C before 1.6.4affected

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12xmltoolingbefore 1.6.4-11.6.4-1
Debian:7xmltoolingbefore 1.4.2-5+deb7u31.4.2-5+deb7u3
Debian:8xmltoolingbefore 1.5.3-2+deb8u31.5.3-2+deb8u3
Debian:9xmltoolingbefore 1.6.0-4+deb9u11.6.0-4+deb9u1
openSUSE:Tumbleweedxmltoolingbefore 3.2.0-1.23.2.0-1.2
SUSE:Linux Enterprise Server for Raspberry Pi 12 SP2xmltoolingbefore 1.5.6-3.6.11.5.6-3.6.1

Same product

shibboleth: all records

Other highest-scoring records for the same primary product.

  • CVE-2018-0486Shibboleth XMLTooling-C before 1.6.3, as used in Shibboleth Service Provider before 2.6.0 on Windows and other products, mishandles digital
    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:xmltooling1.6.4-1 · Debian:12Package registry (OSV)
opensuse:xmltooling3.2.0-1.2 · openSUSE:TumbleweedPackage registry (OSV)
suse:xmltooling1.5.6-3.6.1 · SUSE:Linux Enterprise Server for Raspberry Pi 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.

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.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
low · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
Low
Integrity impact
Low
Availability impact
None

Weakness class (CWE)

CWE-347 · Improper Verification of Cryptographic Signature

CVSS vector

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

nvd-primary

Root cause

The verifier takes the algorithm to verify with from the token’s own header. Untrusted data ends up deciding its own verification rule.

The bug in code

The whole CWE-347 class

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

Vulnerable

ts
const claims = jwt.verify(token, publicKey);

Fixed

ts
const claims = jwt.verify(token, publicKey, {  algorithms: ["RS256"],  issuer: "https://id.example.com",  audience: "portal",});

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

—

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.

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Change log

  1. Fix✗ → ✓

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References

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

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