7.8

CVE-2016-1247: f5 nginx Link Following

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2016-1247USN-3114-1DEBIAN-CVE-2016-1247
Published 29-11-2016Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2016-1247 is a high (CVSS 7.8) Link Following vulnerability in f5 nginx. EPSS estimates a 4.86% chance of exploitation in the next 30 days, higher than 91.9% of scored vulnerabilities. 4 public exploits are recorded.

Overall risk
42/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
4.86%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits4reference, exploit-database

Timeline

  1. 29-11-2016
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

The nginx package before 1.6.2-5+deb8u3 on Debian jessie, the nginx packages before 1.4.6-1ubuntu3.6 on Ubuntu 14.04 LTS, before 1.10.0-0ubuntu0.16.04.3 on Ubuntu 16.04 LTS, and before 1.10.1-0ubuntu1.1 on Ubuntu 16.10, and the nginx ebuild before 1.10.2-r3 on Gentoo allow local users with access to the web server user account to gain root privileges via a symlink attack on the error log.

CVSS metrics

5 scores · 3 sources · 3 versions

EPSS trend

Probability

4.86%

Chance of exploitation in the next 30 days

Percentile

92%

Versus all other CVEs

30-day change

0.00 pp

From 4.86% on 18-09-2026

18-09-202618-10-2026
EPSS score
4.86%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

4 found
  • referenceUnverified

    Exploit Reference (youtube.com)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (legalhackers.com)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (packetstormsecurity.com)

    Maturity: unknown

Show all 4 exploits
  • exploit-databaselocallinuxUnverified

    Nginx (Debian Based Distros + Gentoo) - 'logrotate' Local Privilege Escalation

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • nginx< 1.10.2-1 | < 1.6.2-5+deb8u3
F51 product
  • nginx≤ 1.10.1 | ≤ 1.10.0 | ≤ 1.6.2 | ≤ 1.4.3
Fedoraproject1 product
Ubuntu1 product
  • nginx< 1.4.6-1ubuntu3.6 | < 1.10.0-0ubuntu0.16.04.3

4 vendors · 4 products

References

20 links
Show all 20 references