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Vulnerability Details : CVE-2007-1558

The APOP protocol allows remote attackers to guess the first 3 characters of a password via man-in-the-middle (MITM) attacks that use crafted message IDs and MD5 collisions. NOTE: this design-level issue potentially affects all products that use APOP, including (1) Thunderbird 1.x before and 2.x before, (2) Evolution, (3) mutt, (4) fetchmail before 6.3.8, (5) SeaMonkey 1.0.x before 1.0.9 and 1.1.x before 1.1.2, (6) Balsa 2.3.16 and earlier, (7) Mailfilter before 0.8.2, and possibly other products.
Publish Date : 2007-04-16 Last Update Date : 2017-10-10
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity High (Specialized access conditions exist. It is hard to exploit and several special conditions must be satisfied to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID CWE id is not defined for this vulnerability

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat moderate 2007-03-20 2007-04-01
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2007-1558 unix
DSA-1300-1 iceape oval:org.mitre.oval:def:18785 unix
DSA-1305-1 icedove - several vulnerabilities oval:org.mitre.oval:def:20321 unix
ELSA-2007:0344: evolution-data-server security update (Moderate) oval:org.mitre.oval:def:22650 unix
ELSA-2007:0385: fetchmail security update (Moderate) oval:org.mitre.oval:def:22506 unix
ELSA-2007:0386: mutt security update (Moderate) oval:org.mitre.oval:def:22532 unix
ELSA-2007:0401: thunderbird security update (Critical) oval:org.mitre.oval:def:22350 unix
ELSA-2009:1140: ruby security update (Moderate) oval:org.mitre.oval:def:22900 unix
RHSA-2007:0344: evolution-data-server security update (Moderate) oval:com.redhat.rhsa:def:20070344 unix
RHSA-2007:0353: evolution security update (Moderate) oval:com.redhat.rhsa:def:20070353 unix
RHSA-2007:0385: fetchmail security update (Moderate) oval:com.redhat.rhsa:def:20070385 unix
RHSA-2007:0386: mutt security update (Moderate) oval:com.redhat.rhsa:def:20070386 unix
RHSA-2007:0401: thunderbird security update (Critical) oval:com.redhat.rhsa:def:20070401 unix
RHSA-2007:0402: seamonkey security update (Critical) oval:com.redhat.rhsa:def:20070402 unix
RHSA-2009:1140 -- ruby security update (Moderate) oval:org.mitre.oval:def:29258 unix
RHSA-2009:1140: ruby security update (Moderate) oval:com.redhat.rhsa:def:20091140 unix
The APOP protocol allows remote attackers to guess the first 3 characters of a password via man-in-the-middle (MITM) att... oval:org.mitre.oval:def:9782 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2007-1558

# Product Type Vendor Product Version Update Edition Language
1 Application Apop Protocol Apop Protocol Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Apop Protocol Apop Protocol 1

- References For CVE-2007-1558 CONFIRM CONFIRM CONFIRM
VUPEN ADV-2007-1467
VUPEN ADV-2007-1468
VUPEN ADV-2007-1480
VUPEN ADV-2007-1939
VUPEN ADV-2007-1994
VUPEN ADV-2007-2788
VUPEN ADV-2008-0082
CERT TA07-151A
VUPEN ADV-2007-1466
SECTRACK 1018008
BID 23257 APOP Protocol Insecure MD5 Hash Weakness Release Date:2009-07-07
BUGTRAQ 20070620 FLEA-2007-0027-1: thunderbird
BUGTRAQ 20070403 Re: APOP vulnerability
BUGTRAQ 20070531 FLEA-2007-0023-1: firefox
BUGTRAQ 20070615 rPSA-2007-0122-1 evolution-data-server
BUGTRAQ 20070619 FLEA-2007-0026-1: evolution-data-server
BUGTRAQ 20070402 APOP vulnerability
REDHAT RHSA-2009:1140
REDHAT RHSA-2007:0402
REDHAT RHSA-2007:0401
REDHAT RHSA-2007:0386
REDHAT RHSA-2007:0385
REDHAT RHSA-2007:0353
REDHAT RHSA-2007:0344
MLIST [oss-security] 20090815 mailfilter 0.8.2 fixes CVE-2007-1558 (APOP)
MLIST [oss-security] 20090818 Re: CVE-2007-1558 update (was: mailfilter 0.8.2 fixes CVE-2007-1558 (APOP))
SUSE SUSE-SA:2007:036
SUSE SUSE-SR:2007:014
APPLE APPLE-SA-2007-05-24
MLIST [balsa-list] 20070704 balsa-2.3.17 released
SGI 20070602-01-P

- Metasploit Modules Related To CVE-2007-1558

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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