5

CVE-2015-4334: symantec proxysg_firmware

CVSS: 5.0v2.0MediumModified
Published 07-12-2015Last modified 06-08-2024
Open JSON

Vulnerability summary

CVE-2015-4334 is a medium (CVSS 5.0) vulnerability in symantec proxysg_firmware. EPSS estimates a 3.33% chance of exploitation in the next 30 days, higher than 88.5% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.0/10
010
Medium · v2.0 (NVD)
EPSS score
3.33%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 07-12-2015
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The default configuration of SGOS in Blue Coat ProxySG before 6.2.16.5, 6.5 before 6.5.7.1, and 6.6 before 6.6.2.1 forwards authentication challenges from upstream origin content servers (OCS) when used in an explicit proxy deployment, which makes it easier for remote attackers to obtain sensitive information via a 407 (aka Proxy Authentication Required) HTTP status code, as demonstrated when using NTLM authentication.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

3.33%

Chance of exploitation in the next 30 days

Percentile

89%

Versus all other CVEs

30-day change

0.00 pp

From 3.33% on 22-09-2026

22-09-202622-10-2026
EPSS score
3.33%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Symantec1 product
  • proxysg_firmware≥ 6.2, ≤ 6.2.16.4 | ≥ 6.5, ≤ 6.5.7.0 | ≥ 6.6, ≤ 6.6.2.0

1 vendor · 1 product

References

3 links