CVE-2024-29950

File-transfer interception via SHA-1 SSH signatures

Published Apr 17, 2024 · Updated Aug 2, 2024

Inadequate encryption in the FileTransfer class in Broadcom Brocade SANnav before 2.3.1 allows remote attackers to intercept file transfers. FileTransfer negotiates the ssh-rsa signature scheme, binding SSH authentication to collision-prone SHA-1 rather than a stronger signature hash. An unauthenticated attacker must occupy a man-in-the-middle position on the transfer path; successful exploitation discloses transferred data.

CVSS severity6.5
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Inadequate encryption in the FileTransfer class in Broadcom Brocade SANnav before 2.3.1 allows remote attackers to intercept file transfers. FileTransfer negotiates the ssh-rsa signature scheme, binding SSH authentication to collision-prone SHA-1 rather than a stronger signature hash. An unauthenticated attacker must occupy a man-in-the-middle position on the transfer path; successful exploitation discloses transferred data.

The record

CVE
CVE-2024-29950
Published
Apr 17, 2024
Updated
Aug 2, 2024
Vendor
Broadcom
Product
Brocade SANnav
Classifications
CWE-326, CAPEC-217, T1557
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2.3.1
  2. Affected versionversion=2.3.0a

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Broadcom · Brocade SANnavversion=0 <2.3.1; version=2.3.0a

Published CVSS scores

5.9NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5Brocade Communications Systems, LLCCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
6.5BroadcomCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-326Inadequate Encryption Strength
CAPEC-217Exploiting Incorrectly Configured SSL
T1557Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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