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CVE-2017-12308· NVD / CVE Program· CNA cisco

A vulnerability in the web framework of Cisco Small Business Managed Switches software could allow an unauthenticated, remote attacker to co

A vulnerability in the web framework of Cisco Small Business Managed Switches software could allow an unauthenticated, remote attacker to conduct an HTTP response splitting attack against a user of the web interface of an affected system. The vulnerability is due to insufficient input validation of some parameters that are passed to the web server of the affected system. An attacker could exploit this vulnerability by convincing a user to follow a malicious link or by intercepting a user request and injecting malicious code into the request. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected web interface or allow the attacker to access sensitive browser-based information. This vulnerability affects the following Cisco Small Business 300 and 500 Series Managed Switches: Cisco 350 Series Managed Switches, Cisco 350X Series Stackable Managed Switches, Cisco 550X Series Stackable Managed Switches, Cisco ESW2 Series Advanced Switches, Cisco Small Business 300 Series Managed Switches, Cisco Small Business 500 Series Stackable Managed Switches. Cisco Bug IDs: CSCvg29980.

MediumCVSS 6.1 · v3.1—No exploit No fix recorded
Published
Jan 18, 2018
Updated
Jun 16, 2026
EPSS
0.8% · 56th percentile
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JSON

Action score

24

Monitor

Low priority for now.

CVSS
24 / 40 · 6.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.8%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Affected systems

VendorProduct
ciscosg350-10 firmware
ciscosg350-10
ciscosg350-10p firmware
ciscosg350-10p
ciscosg350-10mp firmware
ciscosg350-10mp
ciscosg355-10p firmware
ciscosg355-10p
ciscosg350-28 firmware
ciscosg350-28
ciscosg350-28p firmware
ciscosg350-28p

and 158 more

Affected versions

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

  • cisco esw2-350g-52 firmware1.4.7.0 and later · before 1.4.9.4
  • cisco esw2-350g-52dc firmware1.4.7.0 and later · before 1.4.9.4
  • cisco esw2-550x-48 firmware1.4.7.0 and later · before 1.4.9.4
  • cisco esw2-550x-48dc firmware1.4.7.0 and later · before 1.4.9.4
  • cisco sf300-08 firmware1.4.7.0 and later · before 1.4.9.4
  • cisco sf300-24 firmware1.4.7.0 and later · before 1.4.9.4
  • cisco sf300-24mp firmware1.4.7.0 and later · before 1.4.9.4
  • cisco sf300-24p firmware1.4.7.0 and later · before 1.4.9.4
  • cisco sf300-24pp firmware1.4.7.0 and later · before 1.4.9.4
  • cisco sf300-48 firmware1.4.7.0 and later · before 1.4.9.4
  • cisco sf300-48p firmware1.4.7.0 and later · before 1.4.9.4
  • cisco sf300-48pp firmware1.4.7.0 and later · before 1.4.9.4
  • cisco sf302-08 firmware1.4.7.0 and later · before 1.4.9.4
  • cisco sf302-08mp firmware1.4.7.0 and later · before 1.4.9.4
  • cisco sf302-08mpp firmware1.4.7.0 and later · before 1.4.9.4
  • cisco sf302-08p firmware1.4.7.0 and later · before 1.4.9.4
  • cisco sf302-08pp firmware1.4.7.0 and later · before 1.4.9.4
  • cisco sf350-48 firmware1.4.7.0 and later · before 1.4.9.4
  • cisco sf350-48mp firmware1.4.7.0 and later · before 1.4.9.4
  • cisco sf350-48p firmware1.4.7.0 and later · before 1.4.9.4

Versions reported by the vendor

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

  • n/a Cisco Small Business 300 and 500 Series Managed Switches

    • Cisco Small Business 300 and 500 Series Managed Switchesaffected

Same product

cisco: all records

Other highest-scoring records for the same primary product.

  • CVE-2017-12307A vulnerability in the web framework of Cisco Small Business Managed Switches software could allow an unauthenticated, remote attacker to co
    24Monitor

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.
  • A user must open a link or visit a page.
  • 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

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

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

Weakness class (CWE)

CWE-113 · Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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.

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