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CVE-2015-6357· NVD / CVE Program· CNA cisco

The rule-update feature in Cisco FireSIGHT Management Center (MC) 5.2 through 5.4.0.1 does not verify the X.509 certificate of the support.s

The rule-update feature in Cisco FireSIGHT Management Center (MC) 5.2 through 5.4.0.1 does not verify the X.509 certificate of the support.sourcefire.com SSL server, which allows man-in-the-middle attackers to spoof this server and provide an invalid package, and consequently execute arbitrary code, via a crafted certificate, aka Bug ID CSCuw06444.

MediumCVSS 6.8 · v2.0—Proof of concept No fix recorded
Published
Nov 18, 2015
Updated
Jun 16, 2026
EPSS
2.6% · 85th percentile
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Report tools

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Action score

28

Monitor

Low priority for now.

CVSS
27 / 40 · 6.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.6%

Noroxi analysis

No Noroxi analysis for this record yet

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Affected systems

VendorProduct
ciscofiresight system software

Affected versions

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

  • cisco firesight system software5.2.0
  • cisco firesight system software5.3.0
  • cisco firesight system software5.3.1.1
  • cisco firesight system software5.3.1.2
  • cisco firesight system software5.3.1.5
  • cisco firesight system software5.4.0
  • cisco firesight system software5.4.0.1

Same product

cisco: all records

Other highest-scoring records for the same primary product.

  • CVE-2015-6335The policy implementation in Cisco FireSIGHT Management Center 5.3.1.7, 5.4.0.4, and 6.0.0 for VMware allows remote authenticated administra
    37Monitor
  • CVE-2016-6394Session fixation vulnerability in Cisco Firepower Management Center and Cisco FireSIGHT System Software through 6.1.0 allows remote attacker
    36Monitor
  • CVE-2016-6417Cross-site request forgery (CSRF) vulnerability in Cisco FireSIGHT System Software 4.10.2 through 6.1.0 and Firepower Management Center allo
    35Monitor
  • CVE-2016-1394Cisco Firepower System Software 6.0.0 through 6.1.0 has a hardcoded account, which allows remote attackers to obtain CLI access by leveragin
    34Monitor
  • CVE-2016-9193A vulnerability in the malicious file detection and blocking features of Cisco Firepower Management Center and Cisco FireSIGHT System Softwa
    31Monitor
  • CVE-2016-1463Cisco FireSIGHT System Software 5.3.0, 5.3.1, 5.4.0, 6.0, and 6.0.1 allows remote attackers to bypass Snort rules via crafted parameters in
    31Monitor

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

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:62015-11-16

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.

  1. First PoC-2 d
  2. Published
  3. TodayOct 1, 2026+3971 d
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

    If successful

    Confidentiality
    P · data can be read
    Integrity
    P · data or configuration can be modified
    Availability
    P · the service can be disrupted
    Attack complexity
    M
    Confidentiality impact
    P
    Integrity impact
    P
    Availability impact
    P

    Weakness class (CWE)

    CWE-20 · Improper Input Validation

    CVSS vector

    AV:N/AC:M/Au:N/C:P/I:P/A:P

    nvd-primary

    Attack context

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

    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