CVE-2001-0690 : Detail

CVE-2001-0690

15.21%V3
Network
2002-03-09
04h00 +00:00
2002-02-24
23h00 +00:00
CVE.org
NVD
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CVE Descriptions

Format string vulnerability in exim (3.22-10 in Red Hat, 3.12 in Debian and 3.16 in Conectiva) in batched SMTP mode allows a remote attacker to execute arbitrary code via format strings in SMTP mail headers.

CVE Informations

Metrics

Metrics Score Severity CVSS Vector Source
V2 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P [email protected]

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 20900

Publication date : 2001-06-05 22h00 +00:00
Author : Megyer Laszlo
EDB Verified : Yes

source: https://www.securityfocus.com/bid/2828/info Exim is a free, open-source Mail Transfer Agent for Unix systems. Exim is vulnerable to a locally exploitable format string attack which may compromise root access. The vulnerability exists only when the 'syntax checking' mode is turned on, which it is not by default. The vulnerability has to do with handling of the hostname string in an email address argumenting the 'From:' field. If the syntax checking is enabled, then this vulnerability can be exploited to execute arbitrary code with root priviliges. Try this: ===8<======8<=======8<====== lez:~$ /usr/sbin/exim -bS mail from:lez@lez rcpt to:hax0r@lez data From:@@%p%p%p%p%p%p%p%p%p%p . ===8<======8<=======8<======= Somewhere in the answers you should see: 550 Syntax error in 'From' header: domain missing or malformed: failing address is: @@0x80beba00x804d2690x80be6600x80be6680x80bd050(nil)(nil)(nil)(nil)0x80b9d40

Products Mentioned

Configuraton 0

University_of_cambridge>>Exim >> Version To (including) 3.22

    Conectiva>>Linux >> Version *

    Configuraton 0

    Debian>>Debian_linux >> Version 4.0

    Redhat>>Linux >> Version *

    References

    http://www.securityfocus.com/bid/2828
    Tags : vdb-entry, x_refsource_BID
    http://www.debian.org/security/2001/dsa-058
    Tags : vendor-advisory, x_refsource_DEBIAN
    http://www.redhat.com/support/errata/RHSA-2001-078.html
    Tags : vendor-advisory, x_refsource_REDHAT
    http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000402
    Tags : vendor-advisory, x_refsource_CONECTIVA