5.8

CVE-2013-6171: dovecot Improper Authentication

CVSS: 5.8v2.0MediumModified
AliasesUBUNTU-CVE-2013-6171DEBIAN-CVE-2013-6171
Published 09-12-2013Last modified 06-08-2024
Open JSON

Vulnerability summary

CVE-2013-6171 is a medium (CVSS 5.8) Improper Authentication vulnerability in dovecot. EPSS estimates a 1.46% chance of exploitation in the next 30 days, higher than 73.1% of scored vulnerabilities.

Overall risk
23/100
0100
Low · default modelHow is this calculated?
CVSS score
5.8/10
010
Medium · v2.0 (NVD)
EPSS score
1.46%
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. 09-12-2013
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

checkpassword-reply in Dovecot before 2.2.7 performs setuid operations to a user who is authenticating, which allows local users to bypass authentication and access virtual email accounts by attaching to the process and using a restricted file descriptor to modify account information in the response to the dovecot-auth server.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

1.46%

Chance of exploitation in the next 30 days

Percentile

73%

Versus all other CVEs

30-day change

0.00 pp

From 1.46% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.46%

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

Debian1 product
  • dovecot< 1:2.2.9-1
Dovecot1 product
  • dovecotEOL≤ 2.2.6 | 2.0:beta1 | 2.0.0 | 2.0.1 | 2.0.2 | 2.0.3 | 2.0.4 | 2.0.5 | 2.0.6 | 2.0.7 | 2.0.8 | 2.0.9 | 2.0.10 | 2.0.11 | 2.0.12 | 2.0.13 | 2.0.14 | 2.0.15 | 2.1:rc1 | 2.1:rc2 | 2.1:rc3 | 2.1:rc5 | 2.1:rc6 | 2.1:rc7 | 2.1.0 | 2.1.1 | 2.1.2 | 2.1.3 | 2.1.4 | 2.1.5 | 2.1.6 | 2.1.7 | 2.1.10 | 2.1.11 | 2.1.12 | 2.1.13 | 2.1.14 | 2.1.15 | 2.2:rc1 | 2.2:rc2 | 2.2:rc3 | 2.2:rc4 | 2.2:rc5 | 2.2:rc6 | 2.2:rc7 | 2.2.0 | 2.2.1 | 2.2.2 | 2.2.3 | 2.2.4 | 2.2.5
Ubuntu1 product
  • dovecot< 1:2.2.9-1ubuntu2

3 vendors · 3 products

References

9 links